Search references for OPERATION STRUCTURE. Phrases containing OPERATION STRUCTURE
See searches and references containing OPERATION STRUCTURE!OPERATION STRUCTURE
Operation Structure was the Canadian Forces humanitarian aid response to the tsunami that struck Southeast Asia on December 26, 2004. The operation carried
Operation_Structure
Set with operations obeying given axioms
algebraic structure or algebraic system consists of a nonempty set A (called the underlying set, carrier set or domain), a collection of operations on A (typically
Algebraic_structure
Arrangement of interrelated elements in an object/system, or the object/system itself
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Physical
Structure
Particular way of storing and organizing data in a computer
functions or operations for working with this data. Data structures are closely related to abstract data types (ADTs). The data structure describes the
Data_structure
Data structure for storing non-overlapping sets
guarantee this time per operation, each operation rebalances the structure (via tree compression) so that subsequent operations become faster. As a result
Disjoint-set_data_structure
data structure is a data structure which supports efficient modifications to a sequence of operations that have been performed on the structure. These
Retroactive_data_structure
Type of semiconductor device failure
unintended mode of operation when subjected to conditions outside of its normal range.[citation needed] For example, the internal structure of an NPN bipolar
Parasitic_structure
Data structure that always preserves the previous version of itself when it is modified
it is modified. Such data structures are effectively immutable, as their operations do not (visibly) update the structure in-place, but instead always
Persistent_data_structure
Transnational-cooperation structure in the European Union
politics, the term Euroregion usually refers to a transnational co-operation structure between two (or more) contiguous territories located in different
Euroregion
military operation, mission or task is called an order of battle. Another important part of the force structure planning is how the command structure is organised
Force_structure
Way in which an organization is structured
An organizational structure defines how activities such as task allocation, coordination, and supervision are directed toward the achievement of organizational
Organizational_structure
Architecture of early generative grammar
Deep structure and surface structure (also D-structure and S-structure although those abbreviated forms are sometimes used with distinct meanings) are
Deep structure and surface structure
Deep_structure_and_surface_structure
Additional mathematical object
mathematics, a structure on a set (or on some sets) refers to providing or endowing it (or them) with certain additional features (e.g. an operation, relation
Mathematical_structure
Mix of funds used to start and sustain a business
In corporate finance, capital structure refers to the mix of various forms of external funds, known as capital, used to finance a business. It consists
Capital_structure
Branch of mathematics
non-arithmetic operations. It distinguishes between different types of algebraic structures, such as groups, rings, and fields, based on the number of operations they
Algebra
Computer science data structure
stored, with their structure being implicit in the access pattern of the operations. Heaps differ in this way from other data structures with similar or
Heap_(data_structure)
Data structure for storing strings
data structure from the early 1970s Gap buffer, a data structure commonly used in text editors that allows efficient insertion and deletion operations clustered
Rope_(data_structure)
Topics referred to by the same term
Look up operation in Wiktionary, the free dictionary. Operation or Operations may refer to: Operation (game), a battery-operated board game that challenges
Operation
Coefficients of an algebra over a field
structure constants can be used to specify the product operation of the algebra (just like a matrix defines a linear operator). Given the structure constants
Structure_constants
Ordered arrangement of atoms, ions, or molecules in a crystalline material
crystallography, crystal structure is a description of the ordered arrangement of atoms, ions, or molecules in a crystalline material. Ordered structures occur from
Crystal_structure
Overview of and topical guide to algebraic structures
with a binary operation. The binary operation can be indicated by any symbol, or with no symbol (juxtaposition). The most common structure is that of a
Outline of algebraic structures
Outline_of_algebraic_structures
not as part of their normal operation, and are therefore not considered to be towers. The following is a list of structures that have historically held
History of the world's tallest structures
History_of_the_world's_tallest_structures
Data structure
page. A point lookup operation retrieves the value associated with a specific key. In LSM trees, because of the multi-level structure and the immutability
Log-structured_merge-tree
Technique of representing an aggregate data structure
structure, where a new, slightly changed, data structure is returned from an edit operation (instead of making a change in the current data structure)
Zipper_(data_structure)
Mathematical operation with two operands
product takes two vectors to produce a scalar. Binary operations are the keystone of most structures that are studied in algebra, in particular in semigroups
Binary_operation
1941 Axis invasion of the Soviet Union during WWII
Operation Barbarossa was the invasion of the Soviet Union by Nazi Germany and several of its European Axis allies starting on Sunday, 22 June 1941, during
Operation_Barbarossa
Type of abstraction in science, mathematics, and philosophy
abstract structure defines a framework of objects, operations, and relationships. These structures are studied in their own right, revealing fundamental
Abstract_structure
Parallel computing data layout methods
In computing, an array of structures (AoS), structure of arrays (SoA) or array of structures of arrays (AoSoA) are contrasting ways to arrange a sequence
AoS_and_SoA
Official name for the US's war on terror
activities in Afghanistan, a number of U.S military command structures operating under the Operation Enduring Freedom banner were also affiliated with several
Operation_Enduring_Freedom
Natural or man-made structures that have the geometry of a honeycomb
Honeycomb structures are natural or man-made structures that have the geometry of a honeycomb to allow the minimization of the amount of used material
Honeycomb_structure
Data structure implementable in purely functional languages
sequence of operations is considered.[citation needed] In general, having inefficient operations is not acceptable for persistent data structures, because
Purely functional data structure
Purely_functional_data_structure
Debate in social sciences
by the overall structure of society. The perceived agency of individuals can also mostly be explained by the operation of this structure. Theoretical systems
Structure_and_agency
World War II operation in France
Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful liberation of German-occupied Western
Operation_Overlord
Government entity
typically holds full or majority ownership and oversees operations. SOEs have a distinct legal structure, with financial and developmental goals, like making
State-owned_enterprise
Aggregate of patterned social arrangements in society
In the social sciences, social structure is the aggregate of patterned social arrangements in society that are both emergent from and determinant of the
Social_structure
paths to the variable names. Operations defined on feature structures, e.g. unification, are used extensively in phrase structure grammars. In most theories
Feature_structure
1921–26 Soviet counterintelligence plan
Operation Trust (Russian: операция "Трест", romanized: operatsiya "Trest") was a counterintelligence operation of the State Political Directorate (GPU)
Operation_Trust
The Alps–Mediterranean Euroregion (transnational co-operation structure) was created on 10 July 2007 between three Italian regions (Piedmont, Liguria
Alps–Mediterranean_Euroregion
Canadian Armed Forces unit, created 1996
deployment of DART in 2004 to the Asia-Pacific tsunami disaster (see Operation Structure (Sri Lanka), 2004). It is suggested that rapidly deploying human
Disaster Assistance Response Team
Disaster_Assistance_Response_Team
Algebraic structure
Jordan inversion as basic operation and Hua's identity as a basic relation. There is a classification of simple structures deriving from the classification
J-structure
Programming paradigm based on block-based control flow
processing unit, as well as the operation of a Turing machine. Therefore, a processor is always executing a "structured program" in this sense, even if
Structured_programming
1999 Indian military operation
Operation Safed Sagar ( lit. "Operation White Ocean") was the code name assigned to the combined arms operation by the Indian Air Force, supporting elements
Operation_Safed_Sagar
coordinates) GPX (primary coordinates) GPX (secondary coordinates) The tallest structure in the world is the Burj Khalifa, a skyscraper at 828 m (2,717 ft). Listed
List_of_tallest_structures
EU military operation in the Red Sea
Operation Aspides, also known as European Union Naval Force (EUNAVFOR) Aspides, is an EU military operation in response to Houthi attacks with international
Operation_Aspides
German plan for putting down civil unrest, repurposed for planned coup, WW2
Operation Valkyrie (German: Unternehmen Walküre) was a German World War II emergency continuity-of-government operations plan issued to the Territorial
Operation_Valkyrie
1979–80 Soviet intervention in Afghanistan
Operation Baikal-79 (Russian: Операция Байкал-79, Operatsiya Baykal-79) was the codename for the Soviet Union's military intervention in Afghanistan,
Operation_Baikal-79
Mapping of mathematical formulas to a particular meaning
structure consists of a set along with a collection of finitary operations and relations that are defined on it. Universal algebra studies structures
Structure (mathematical logic)
Structure_(mathematical_logic)
Property of math operations which yield an inverse result when arguments' order reversed
refers to a group structure on the operation's codomain, possibly with another operation. Subtraction is an anticommutative operation because commuting
Anticommutative_property
Chemical database with inorganic structures
Inorganic Crystal Structure Database (ICSD) is a chemical database founded in 1978 by Günter Bergerhoff at the University of Bonn in Germany and I. D
Inorganic Crystal Structure Database
Inorganic_Crystal_Structure_Database
2005 U.S. military operation during the War in Afghanistan
Operation Red Wings (often incorrectly referred to as Operation Redwing or Operation Red Wing), informally referred to as the Battle of Abbas Ghar, was
Operation_Red_Wings
In mathematics and computer science, an event structure describes sequences of events that can be triggered by combinations of other events, with certain
Event_structure
Differentiation of firms by goods and operations
(homogeneous/heterogeneous) and how their operations are affected by external factors and elements. Market structure makes it easier to understand the characteristics
Market_structure
science. It refers to a data structure whose operations are roughly as fast as those of a conventional data structure for the problem, but whose size can be
Compressed_data_structure
Way in which data is arranged and accessed in computer memory
a C structure when the purpose is the efficient mapping of that area through a hardware address translation mechanism (PCI remapping, operation of a
Data_structure_alignment
Rewrite rule used to describe a given language's syntax
theoretical syntax. In Minimalism for instance, sentence structure is generated from the bottom up. The operation Merge merges smaller constituents to create greater
Phrase_structure_rules
Geometric transformation which produces an identical image
In mathematics, a symmetry operation is a geometric transformation of an object that leaves the object looking the same after it has been carried out
Symmetry_operation
Method of analyzing the amortized complexity of a data structure
a data structure, a measure of its performance over sequences of operations that smooths out the cost of infrequent but expensive operations. In the
Potential_method
Type of concealed or secretive government activity
A covert operation, or undercover operation is a military or police operation involving a covert agent or troops acting under an assumed cover to conceal
Covert_operation
FBI covert surveillance plan
built into the structure of the building while it was under construction, leaving the Americans vulnerable to Soviet surveillance operations. After the discovery
Operation_Monopoly
Computer data structure
(determine the kth smallest value in the structure) and the operation delete(k) (delete the kth smallest value in the structure), for any fixed value (or set of
Min-max_heap
1969–2007 British military operation in Northern Ireland during the Troubles
Operation Banner was the operational name for the British Armed Forces' operation in Northern Ireland from 1969 to 2007, as part of the Troubles. It was
Operation_Banner
The structure of the North Atlantic Treaty Organization (NATO) is complex and multi-faceted. The decision-making body is the North Atlantic Council (NAC)
Structure_of_NATO
Pressurized building-size envelope
An air-supported (or air-inflated) structure is any building that derives its structural integrity from the use of internal pressurized air to inflate
Air-supported_structure
1962–63 Israeli covert operation in Egypt
Operation Damocles was a covert campaign of the Israeli intelligence agency, Mossad in August 1962 which targeted German scientists and technicians, formerly
Operation_Damocles
Mathematical operation that combines three elements to produce another element
{\displaystyle T(a,b,c)=ab+c} is an example of a ternary operation on the integers (or on any structure where + {\displaystyle +} and × {\displaystyle \times
Ternary_operation
Destruction Operation
reconnaissance, making plans for Operation "Washing" to cripple German supply lines. The Asopos viaduct was an imposing structure, spanning a sheer gorge and
Operation_Washing
A typical corporate structure consists of various departments that contribute to the company's overall mission and goals. Common departments include Marketing
Corporate_structure
Islamist terrorist attack in Indian-administered Kashmir
immediately after the attack to find the perpetrators. Having located them, an "Operation Mahadev" was launched in July 2025, in which three militants were killed
2025_Pahalgam_attack
WWII bombing to save French Resistance fighters
Operation Jericho (Ramrod 564) took place on 18 February 1944 during the Second World War. Allied aircraft bombed Amiens Prison in German-occupied France
Operation_Jericho
2015 conspiracy thriller film by Matt Johnson
Operation Avalanche is a 2016 found footage conspiracy thriller film directed by Matt Johnson, who co-wrote it with Josh Boles. Set in the late 1960s
Operation_Avalanche_(film)
Algebraic structure with a binary operation
is a basic kind of algebraic structure. Specifically, a magma consists of a set equipped with a single binary operation that must be closed by definition
Magma_(algebra)
Type of fire
A structure fire is a fire involving the structural components of various types of residential, commercial or industrial buildings, such as barn fires
Structure_fire
Abstract data type
main operations: Push, which adds an element to the collection, and Pop, which removes the most recently added element. Additionally, a peek operation can
Stack_(abstract_data_type)
Omission of operations and relations of a structure
theory, a reduct of an algebraic structure is obtained by omitting some of the operations and relations of that structure. The opposite of "reduct" is "expansion"
Reduct
the United States and a beehive burner in Canada, is a free-standing structure designed to burn waste wood from logging yards and sawdust from sawmills
Wood-waste_burner
Process of moving a structure from one location to another
A structure relocation is the process of moving a structure from one location to another. There are two main ways for a structure to be moved: disassembling
Structure_relocation
British police investigation against Jimmy Savile and others
Operation Yewtree was a British police investigation into the sexual abuse, predominantly the abuse of children, committed by multiple media personalities
Operation_Yewtree
Computer programming method
control structures, so the implemented designs use just primitive operations, sequences, iterations and selections. JSP is not used to structure programs
Jackson structured programming
Jackson_structured_programming
National intelligence agency of Israel
The Institute for Intelligence and Special Operations, popularly known as Mossad, is the national intelligence agency of the State of Israel. It is one
Mossad
2001 NATO operation in North Macedonia
Operation Essential Harvest (or Task Force Harvest) was a deployment mission in the Republic of North Macedonia by NATO, officially launched on 22 August
Operation_Essential_Harvest
Police Scotland investigation into fundraising fraud in the SNP
Operation Branchform was a Police Scotland investigation into fundraising fraud in the Scottish National Party (SNP) that was launched in July 2021 and
Operation_Branchform
The structure of the United States Navy consists of four main bodies: the Office of the Secretary of the Navy, the Office of the Chief of Naval Operations
Structure of the United States Navy
Structure_of_the_United_States_Navy
Three-dimensional arrangement of atoms in an amino acid-chain molecule
Protein structure is the three-dimensional arrangement of atoms in an amino acid-chain molecule. Proteins are polymers – specifically polypeptides – formed
Protein_structure
1999 conflict between India and Pakistan
conflict is also referred to as Operation Vijay (lit. 'Victory'), which was the codename of the Indian military operation in the region. The Indian Air
Kargil_War
1979 Soviet assassination of Afghan leader Hafizullah Amin
Operation Storm-333 (Russian: Шторм-333, Shtorm-333) was a military raid executed by the Soviet Union in Afghanistan on 27 December 1979. Special forces
Operation_Storm-333
Clandestine Western military operations during the Cold War
Operation Gladio was the codename for clandestine "stay-behind" operations of armed resistance that were organized by the Western Union (WU; founded in
Operation_Gladio
Armed conflict in South Asia
strikes on Pakistan, in a military campaign codenamed Operation Sindoor. India said that the operation was in response to the Pahalgam attack in Indian-administered
2025_India–Pakistan_conflict
Anti-narcotics initiative in Kerala, India
Operation Toofan, officially Operation Toofan: The Narco Hunt, is an anti-narcotics campaign run in Kerala, India, by the state Home Department, the Kerala
Operation_Toofan
One of several HQs for EU military or civilian missions
permanent military command structure along the lines of the North Atlantic Treaty Organization's (NATO) Allied Command Operations (ACO), although it has been
Command and control structure of the European Union
Command_and_control_structure_of_the_European_Union
This is a list of building or structure fires where a building or structure has caught fire. For major urban conflagrations, see List of town and city
List of building or structure fires
List_of_building_or_structure_fires
Covert entries to gather intelligence
Black bag operations or black bag jobs are covert or clandestine entries into structures to obtain information for the human intelligence operations. Some
Black_bag_operation
Operations affecting mental contents
development, on the basis of presence of mental operations as an adaptation tool. J. P. Guilford's Structure of Intellect model described up to 180 different
Mental_operations
the 2005 Kashmir earthquake) Operation Marquis – United Nations Advance Mission in Cambodia (UNAMIC) Operation Structure – Disaster Assistance Response
List of Canadian military operations
List_of_Canadian_military_operations
notable data structures, as measured by the complexity of their logical operations. For a more comprehensive listing of data structures, see List of data
Comparison_of_data_structures
2025 police raids in Rio de Janeiro, Brazil
Operation Containment (Portuguese: Operação Contenção) was a large-scale law-enforcement operation launched on 28 October 2025 by the Rio de Janeiro state
Operation_Containment
1942 British Commando raids in Crete
Operation Albumen was the name of British Commando raids in June 1942 on German airfields in the Axis-occupied Greek island of Crete, to prevent them
Operation_Albumen
Failed 1980 American military operation in Iran
60km 37miles Desert One Operation Eagle Claw (Persian: عملیات پنجه عقاب) was a failed United States Department of Defense attempt to rescue 52 embassy
Operation_Eagle_Claw
Military unit
The Special Operations Force (SOF) is the primary special forces unit of the Singapore Army responsible for conducting special operations. The SOF is
Special Operations Force (Singapore)
Special_Operations_Force_(Singapore)
Floodgate system in Louisiana, USA
The Old River Control Structure (ORCS) is a floodgate system in a branch of the Mississippi River in central Louisiana. It regulates the flow of water
Old_River_Control_Structure
US Space Force senior officers
naval operations. They are part of the Office of the Chief of Space Operations and hold office at the Pentagon. The proposed organizational structure of
Deputy Chief of Space Operations
Deputy_Chief_of_Space_Operations
OPERATION STRUCTURE
OPERATION STRUCTURE
Female
Japanese
(1-æ, 2- 京, 3- å”, 4- 郷) Japanese unisex name KYOU means 1) "apricot," 2) "capital," 3) "cooperation," or 4) "village."Â
Surname or Lastname
English
English : habitational name from a place in Lancashire, so named from Old English gor ‘dirt’, ‘mud’ + tūn ‘enclosure’, ‘settlement’.Introduced in America by a family from Gorton, Lancashire, England (three miles from Manchester), the name Gorton was also adopted by a religious group known as the Gortonites. They were followers of Samuel Gorton (c. 1592–1677), whose unorthodox religious beliefs, which included denying the doctrine of the Trinity, caused him to seek religious toleration by emigrating to Boston in 1637 with his family. In conflict with authorities in Massachusetts Bay, Plymouth, and Newport, he eventually settled in Shawomet, RI, and renamed it Warwick. He died there in 1677, leaving three sons and at least six daughters.
Girl/Female
Tamil
Shape, Structure
Surname or Lastname
English (mainly East Anglia)
English (mainly East Anglia) : nickname for a lordly, impressive, or sharp-eyed man, from Middle English egle ‘eagle’ (from Old French aigle, from Latin aquila).English (of Norman origin) : habitational name from Laigle in Orne, France, the name of which ostensibly means ‘the eagle’, although it is possible that the recorded forms result from the operation of early folk etymology on some unknown original. Matilda de Aquila is recorded in 1129 as the widow of Robert Mowbray, Earl of Northumberland.Jewish : translation into English of Adler.
Girl/Female
Arabic, Muslim
Moderation; Neutrality
Boy/Male
Hindu, Indian
Seperation
Girl/Female
British, Christian, English
Temperance; One of the Qualities Adopted as a First Name by the Puritans After the Reformation; Moderation; Self Restraint
Female
Japanese
(1-æ, 2- 京, 3- å”, 4- 郷) Variant spelling of Japanese unisex Kyou, KYO means 1) "apricot," 2) "capital," 3) "cooperation," or 4) "village."Â
Girl/Female
Indian
Shape, Structure
Surname or Lastname
German and Dutch
German and Dutch : from Middle High German bloch, Middle Dutch blok ‘block of wood’, ‘stocks’. The surname probably originated as a nickname for a large, lumpish man, or perhaps as a nickname for a persistent lawbreaker who found himself often in the stocks.English : possibly a metonymic occupational name for someone who blocks, as in shoemaking and bookbinding, from Middle English blok ‘block’.Jewish (Ashkenazic) : Americanized spelling of Bloch (see Vlach).Adriaen Coertsz Block was a Dutch-born merchant-explorer who traded along the CT coast and Long Island shortly after Hudson’s voyage to the region in 1609. Block Island, between the north fork of Long Island and RI, which he used as a base of operations, is named after him.
Boy/Male
Arabic, Muslim
Method; Way; Mode; Manner; Operation; Process
Surname or Lastname
English
English : from Middle English, Old French sur(ri)gien (from a derivative of Late Latin chirurgia ‘handiwork’), hence an occupational name for a person who performed operations, mostly amputations. Before the advent of anaesthetics, only crude surgery was possible, and the calling was often combined with that of the barber or bath house attendant.French : topographic name for someone who lived close to a gushing spring.
Girl/Female
Arabic, Muslim
Balance; Temperance; Moderation
Boy/Male
Muslim
Solid structure
Girl/Female
Muslim
Moderation, Equality
Girl/Female
Indian
Shape, Structure
Girl/Female
Indian, Sanskrit
Name of Lord Shiva; The Operator; One who Maintains Balance Between Life and Death
Female
English
English name derived from the vocabulary word, TEMPERANCE means "moderation, self-restraint."
Girl/Female
Indian
Moderation, Equality
Surname or Lastname
English
English : from the Old Norse female personal name Gunvǫr, composed of the elements gunn ‘battle’ + vǫr, the feminine form of varr ‘defender’, or possibly from the Old Norse male personal name Gunnarr.English : occupational name for an operator of heavy artillery (see Gunn).Americanized spelling of German Gönner, a habitational name for someone from any of numerous places named Gönne.
OPERATION STRUCTURE
OPERATION STRUCTURE
Girl/Female
Gujarati, Hindu, Indian, Kannada, Tamil
Successfull Lady; To Succeed
Boy/Male
Hindu, Indian
Only One
Girl/Female
Indian
Excellent, Highest social standing, Tall, Towering
Girl/Female
Afghan, Arabic, Assamese, French, German, Hindu, Indian, Kannada, Marathi, Muslim, Spanish, Telugu
Land of Beauty; From the High Tower
Boy/Male
Hindu
Unfading, Ever bright, Brilliant, Fresh, Clear
Boy/Male
Indian, Kannada, Tamil
Bold as a Lion; Brave Like a Lion
Girl/Female
American, Australian, British, Christian, English, French, Hindu, Indian, Latin
White Wave; Variant of Jenny which is a Diminutive of Jane and Jennifer; Diminutive of Virginia; Virgin; Maiden
Boy/Male
Hindu
Shining
Female
English
Old Norman French equivalent of English Avila, AVELINE means "little Eve."Â
Female
Portuguese
Portuguese form of Roman Latin Lucia, LÚCIA means "light."
OPERATION STRUCTURE
OPERATION STRUCTURE
OPERATION STRUCTURE
OPERATION STRUCTURE
OPERATION STRUCTURE
n.
Calmness of mind; equanimity; as, to bear adversity with moderation.
n.
Operation.
n.
Act; working; operation.
n.
Effect produced; influence.
n.
The act or process of operating; agency; the exertion of power, physical, mechanical, or moral.
n.
The act of loading.
n.
The act of operating or working; operation.
n.
The act of cooperating, or of operating together to one end; joint operation; concurrent effort or labor.
n.
The method of working; mode of action.
n.
Exposure to the free action of the air; airing; as, aeration of soil, of spawn, etc.
a.
Producing the appropriate or designed effect; efficacious; as, an operative dose, rule, or penalty.
n.
Something to be done; some transformation to be made upon quantities, the transformation being indicated either by rules or symbols.
n.
Any methodical action of the hand, or of the hand with instruments, on the human body, to produce a curative or remedial effect, as in amputation, etc.
a.
Having the power of acting; hence, exerting force, physical or moral; active in the production of effects; as, an operative motive.
n.
The consequence of anything; the issue; conclusion; result; that in which an action, operation, or series of operations, terminates.
n.
An elaborate discourse, delivered in public, treating an important subject in a formal and dignified manner; especially, a discourse having reference to some special occasion, as a funeral, an anniversary, a celebration, or the like; -- distinguished from an argument in court, a popular harangue, a sermon, a lecture, etc.; as, Webster's oration at Bunker Hill.
n.
That which is operated or accomplished; an effect brought about in accordance with a definite plan; as, military or naval operations.
v. i.
To deliver an oration.
a.
Based upon, or consisting of, an operation or operations; as, operative surgery.
n.
The symbol that expresses the operation to be performed; -- called also facient.