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Topics referred to by the same term
90 may refer to: 90 (number), the natural number following 89 and preceding 91 one of the years 90 BC, AD 90, 1990, 2090, etc. The international calling
90
British 155 mm self-propelled howitzer
The AS-90 ("Artillery System for the 1990s"), known officially as Gun Equipment 155 mm L131, is an armoured self-propelled howitzer formerly used by the
AS-90
American reality television series
90 Day Fiancé is an American reality television series on TLC that follows couples who have applied for or received a K-1 visa, which allows foreign fiancés
90_Day_Fiancé
Russian third-generation main battle tank
The T-90 is a third-generation Russian main battle tank developed from, and designed to replace the T-72. It uses a 125 mm 2A46 smoothbore main gun, the
T-90
Green political party in Germany
Alliance 90/The Greens (German: Bündnis 90/Die Grünen [ˈbʏntnɪs ˈnɔʏntsɪç diː ˈɡʁyːnən] ), often simply referred to as Greens (German: Grüne [ˈɡʁyːnə]
Alliance_90/The_Greens
Natural number between 89 and 91
90 (ninety) is the natural number following 89 and preceding 91. Look up ninety in Wiktionary, the free dictionary. In the English language, the numbers
90_(number)
2015 British drama miniseries
This Is England '90 is a 2015 British television miniseries written by Shane Meadows and Jack Thorne and produced by Warp Films. It is the fourth and final
This_Is_England_'90
Cancelled aircraft
The BQM-90 was an unmanned aircraft proposed for use as a target drone by the United States Armed Forces. Developed during the 1970s, no aircraft were
BQM-90
Radioactive isotope of strontium
Strontium-90 (90 Sr) is a radioactive isotope of strontium produced by nuclear fission, with a half-life of 28.91 years. It undergoes β− decay into 90 Y with
Strontium-90
Interstate Highway across northern United States
Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at 3,099.7 miles (4,988.5 km). It
Interstate_90
1990 single by George Michael
"Freedom! '90" (also known simply as "Freedom!") is a song written, produced, and performed by English singer-songwriter George Michael, and released in
Freedom!_'90
Humorous aphorism in computer programming
first 90 percent of the code accounts for the first 90 percent of the development time. The remaining 10 percent of the code accounts for the other 90 percent
Ninety–ninety_rule
Swedish Infantry fighting vehicle
The Combat Vehicle 90 (CV90) (Swedish: stridsfordon 90, strf 90 or Stridsfordon 90) is a family of Swedish tracked armoured combat vehicles designed by
Combat_Vehicle_90
Interstate Highway in Washington
Interstate 90 (I-90), designated as the American Veterans Memorial Highway, is a transcontinental Interstate Highway that runs from Seattle, Washington
Interstate_90_in_Washington
Russian armoured personnel carrier
The BTR-90 (GAZ-5923) (Russian: бронетранспортёр, romanized: Bronetransportyor, lit. 'Armoured Transporter') is an 8×8 wheeled armoured personnel carrier
BTR-90
Topics referred to by the same term
Type 90 may refer to: Type 90 75 mm field gun, 1932–1945 Type 90 240 mm railway gun 1930–1945 Type 90 tank, from 1990 Type 90 Ship-to-Ship Missile, from
Type_90
Rare shooting proficiency in basketball
The 50–40–90 club is a statistical achievement used to distinguish players as excellent shooters in the National Basketball Association (NBA), NBA G League
50–40–90_club
Service rifle cartridge
for export sales. 5,6mm Gw Pat 90: The 63-grain 5.56×45mm Gewehrpatrone 90 / 5,6mm Gw Pat 90 ("5.6-mm Rifle Cartridge 90") is the Swiss Army's standard
5.56×45mm_NATO
Geodetic datum
PZ-90 (short for Parametry Zemli 1990 goda, in Russian: Параметры Земли 1990 года) is a geodetic datum defined for use in the GLONASS system. Creation
PZ-90
British science-fiction TV series (1968–1969)
Joe 90 is a British science fiction television series created by Gerry and Sylvia Anderson and filmed by their production company, Century 21, for ITC
Joe_90
(17.3%) China (17.2%) United States (4.20%) Indonesia (3.50%) Pakistan (2.90%) Nigeria (2.70%) Brazil (2.60%) Bangladesh (2.10%) Russia (1.80%) Others
List of countries and dependencies by population
List_of_countries_and_dependencies_by_population
Result due to Kummer on cyclic extensions of fields that leads to Kummer theory
In abstract algebra, Hilbert's Theorem 90 (or Satz 90) is an important result on cyclic extensions of fields (or to one of its generalizations) that leads
Hilbert's_Theorem_90
Proposed frigate
NFR-90 (NATO Frigate Replacement for 90s) was a multi-national programme designed to produce a common frigate for several NATO nations. However, the varying
NFR-90
Decade of the Gregorian calendar (1990–1999)
(often referred and shortened to as "the '90s", "the Nineties", "the 90's", or "the '90's") was the decade that began on 1 January 1990, and ended on 31 December
1990s
Guitar pickup
The P-90 (sometimes written P90) is a single-coil electric guitar pickup produced by Gibson Guitar Corporation since 1946, as well as other vendors. Compared
P-90
Japanese main battle tank
The Type 90 tank (90式戦車, Kyū-maru-shiki-sensha) is a main battle tank (MBT) of the Japan Ground Self-Defense Force (JGSDF). It was designed and built
Type_90_tank
Propfan-powered regional aircraft proposal
The Advanced Technology Regional Aircraft 90 (ATRA-90) was a propfan-powered regional aircraft that was proposed in 1986. Conceived by Industri Pesawat
ATRA-90
Association football club in Newport, Wales
nickname of the "Exiles". They immediately won the Hellenic League in 1989–90 and were promoted out of the Southern League Midland Division in 1994–95.
Newport_County_A.F.C.
1989 studio album by 808 State
90 is the second studio album by British electronic music group 808 State, released on 4 December 1989 as their first album on ZTT Records. The album features
90_(album)
American television series
Playhouse 90 is an American television anthology drama series that aired on CBS from 1956 to 1960 for a total of 133 episodes. The show was produced at
Playhouse_90
Elementary cellular automaton
In the mathematical study of cellular automata, Rule 90 is an elementary cellular automaton based on the exclusive or function. It consists of a one-dimensional
Rule_90
Italian semi-automatic pistol
The Beretta Model 90 is a semi-automatic pistol produced by Beretta, primarily from 1969 to 1982. It is a medium-frame pistol, featuring a double-action
Beretta_90
Russian hypersonic cruise missile
The Kh-90 GELA (Russian: ГЭЛА (гиперзвуковой экспериментальный летательный аппарат), Hypersonic Experimental Flight Vehicle) is a Soviet/Russian air-to-surface
Kh-90
Canadian television sketch comedy show
City Television, commonly shortened to SCTV and later known as SCTV Network 90 (the NBC version) and SCTV Channel (the Cinemax version), is a Canadian television
Second_City_Television
Topics referred to by the same term
Class 90 may refer to: British Rail Class 90 German Class 90 tank locomotives with a 0-6-2T wheel arrangement operated by the Deutsche Reichsbahn and its
Class_90
American web portal
Yahoo Native. It is operated by the namesake company Yahoo! Inc., which is 90% owned by Apollo Global Management and 10% by Verizon. Yahoo was established
Yahoo
Off-road 4x4 and pickup truck series produced by Land Rover
name of a specific model; thus, in 1990, Land Rover renamed them Defender 90, Defender 110 and Defender 130 respectively. The vehicle, a British equivalent
Land_Rover_Defender
Early word processing system
The AES-90 was a pioneering electronic word processing system developed by Stephen B. Dorsey and manufactured by his company, Automatic Electronic Systems
AES-90
Family of military helicopters
Australian MRH-90 suffered a single engine failure near Adelaide, landing safely at RAAF Base Edinburgh Australia grounded their MRH-90 fleet due to engine
NHIndustries_NH90
Double asteroid system in the outer asteroid belt
90 Antiope is a double asteroid in the outer asteroid belt. It was discovered on 1 October 1866, by Robert Luther. In 2000, it was found to consist of
90_Antiope
Mobile phone platform
The Series 90 (S90, formerly Hildon) is a platform for mobile phones that use the Symbian operating system (OS). It was developed by Nokia together with
Series_90_(software_platform)
Motor vehicle
With a change in rear axle ratio from 4.125 to 3.9, the VX 4/90 could now easily exceed 90 mph. General Motors New Zealand assembled the Victor FB sedan
Vauxhall_Victor
Full-size crossover SUV
The Mazda CX-90 is a full-size crossover SUV with three-row seating produced by Mazda, introduced in 2023. A two-row version, marketed separately as the
Mazda_CX-90
Right triangle with a feature making calculations on the triangle easier
for some common angles, shown in the table below. The 45°–45°–90° triangle, the 30°–60°–90° triangle, and the equilateral/equiangular (60°–60°–60°) triangle
Special_right_triangle
Star in the constellation Draco, orbited by eight planets
Kepler-90, also designated 2MASS J18574403+4918185, is an F-type star located about 2,790 light-years (855 pc) from Earth in the constellation of Draco
Kepler-90
Radioactive isotope of yttrium
Yttrium-90 (90 Y) is a radioactive isotope of yttrium. Yttrium-90 has found a wide range of uses in radiation therapy to treat some forms of cancer. It
Yttrium-90
International gardening exposition held in Tsurumi Ryokuchi, Osaka
Expo '90 (国際花と緑の博覧会, Kokusai Hana to Midori no Hakurankai) or The International Garden and Greenery Exposition, organized as a part of the International
Expo_'90
Global pandemic
Malta". Malta Medical Journal. 17 (3): 16–19. Retrieved 25 March 2020. 1889–90 pandemic – The Asiatic Flu [...] by the end of March 1890. The case fatality
1889–1890_pandemic
1996–1997 Argentine telenovela
90-60-90 modelos (90-60-90 Models) is an Argentine 1996 telenovela, produced by Telearte. It was aired on January 8, 1996, on Canal 9 in Argentina. It
90-60-90_Modelos
Large-cap American stock market index
Consumer Staples (4.94%) Energy (2.91%) Utilities (2.39%) Real Estate (1.90%) Materials (1.68%) S&P 500 (Standard and Poor's 500) is a stock market index
S&P_500
Air-to-air & surface-to-air missiles
TY-90 (Chinese: 天燕-90; pinyin: Tiān Yàn-90; lit. 'Sky Swallow-90'; NATO reporting name: CH-SA-13) is a Chinese air-to-air missile specifically developed
TY-90
French armored car
large-scale production: the ERC-90 Lynx and the ERC-90 Sagaie. The main difference between the two versions is the type of turret and 90 mm gun fitted. Sagaie is
Panhard_ERC
Highway in Worcester County, Maryland, US
Maryland Route 90 (MD 90) is a state highway in the U.S. state of Maryland. Known as the Ocean City Expressway, the state highway runs 11.83 miles (19
Maryland_Route_90
1989 studio album by Regine Velasquez-Alcasid
Nineteen '90 is the second studio album from Filipina singer-actress Regine Velasquez-Alcasid on November 11, 1989. When it was released, Velasquez was
Nineteen_90
Association football club in Wolverhampton, England
over the years, most notably Billy Wright, who captained England a record 90 times and was the first player to win a century of international caps, as
Wolverhampton_Wanderers_F.C.
Swiss military camouflage since 1993
The TAZ 90 (TarnAnZug in German and TASS 90 in French) is the camouflage patterns for current standard issue battledress and service dress uniform of
TAZ_90
State highway in eastern Oregon, US
Idaho. It is a continuation of ID 52 and was once signed as Oregon Route 90. OR 52 consists of the Payette Spur No. 492 (see Oregon highways and routes)
Oregon_Route_52
1965 operation of the Argentine Army to cement claims on Antarctica
Operación 90 (Operation Ninety) was the first Argentine ground expedition to the South Pole, carried out in 1965 by ten soldiers of the Argentine Army
Operación_90
Type of Sniper rifle
The PSR-90 (Precision Sniper Rifle) is a Pakistani semi-automatic 7.62×51mm precision rifle designed and manufactured by Pakistan Ordnance Factories. The
PSR-90
Subcompact car produced by Renault and its Dacia subsidiary
pick-up), Renault Symbol (Mk3), Renault Taliant, and as the Renault Tondar 90 depending on the existing presence or positioning of the Renault brand. Since
Dacia_Logan
Calendar year
AD 90 (XC) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Domitian and Nerva (or
AD_90
Topics referred to by the same term
K-90 or K90 may refer to: K-90 (Kansas highway), a highway in Kansas K-90, a rating for hills indicating a construction point of 90 INS Prachand (K90)
K-90
Italian assault rifle
The Beretta AR70/90 is a gas operated assault rifle chambered for the 5.56×45 mm NATO cartridge, and is the standard issue service rifle of the Italian
Beretta_AR70/90
Motor vehicle
The SS 90 is a British sports car that was built by SS Cars in Coventry, England, in 1935. In 1945, the company changed its name to Jaguar. The car has
SS_90
Combat shotgun
firearms manufacturer Benelli Armi SpA, and the third model of the Benelli Super 90 line of semi-automatic shotguns. The M3 holds a maximum of seven rounds and
Benelli_M3
Rigvedic hymn dedicated to Purusha
Purusha Sukta (पुरुषसूक्तम्, IAST: Puruṣasūktam) is a hymn in the Rigveda (X.90), dedicated to the Purusha, the "Cosmic Being". It is considered to have been
Purusha_Sukta
1990–1993 East German political alliance
Alliance 90 (German: Bündnis 90) was a political alliance of three non-communist political groups in East Germany. It was formed in February 1990 by the
Alliance_90
Soviet attack aircraft introduced 1978
crashes in Croatia, Moscow says it destroyed 90% of the Ukrainian Air Bases (But The Pentagon says that 90% of the Ukrainian Air Force is intact)". The
Sukhoi_Su-25
Software system for finding relevant information on the Web
As of May 2025, according to StatCounter, Google holds approximately 89–90 % of the worldwide search share, with competitors trailing far behind: Bing
Search_engine
Statistical principle about ratio of effects to causes
principle at work. In individual cases, the distribution could be nearer to 90:10 or 70:30. Note that there is no need for the two numbers to add up to the
Pareto_principle
Chemical element with atomic number 90 (Th)
Thorium is a chemical element; it has symbol Th and atomic number 90. Thorium is a weakly radioactive light silver metal which tarnishes olive grey when
Thorium
2021 American documentary film
Kid 90 is a 2021 American documentary film directed and produced by Soleil Moon Frye. The film follows Frye who carried a camera around with her everywhere
Kid_90
1998 American crewed spaceflight and final flight of Spacelab
STS-90 was a 1998 Space Shuttle mission flown by the Space Shuttle Columbia. The 16-day mission marked the last flight of the European Space Agency's Spacelab
STS-90
Beyond-visual-range air-to-air missile
The Fakour-90 (Persian: فکور ۹۰, lit. 'Wisdom-90') is an Iranian air-to-air missile based on the AIM-54 Phoenix and the MIM-23 Hawk. It is solely deployed
Fakour-90
Swiss assault rifle
cartridge was rejected in favour of the more conventional SIG 5.6×45mm Gw Pat 90 round (with a 4.1 g, tombac-jacketed, lead core projectile) that is the Swiss
SIG_SG_550
Association football tournament in Italy
"WORLD CUP '90; Fan Violence at World Cup Finals". The New York Times. 17 June 1990. Archived from the original on 26 January 2022. "WORLD CUP '90: English
1990_FIFA_World_Cup
Peruvian right-wing political party
Cambio 90 (lit. Change 90, C90) was a Peruvian right-wing political party which entered the political spectrum in early 1990, and throughout the 1990s
Cambio_90
Human disease
from the Papillomaviridae family. Many HPV infections cause no symptoms and 90% resolve spontaneously within two years. Sometimes an HPV infection persists
Human papillomavirus infection
Human_papillomavirus_infection
Topics referred to by the same term
90 Squadron or 90th Squadron may refer to: No. 90 Squadron RAF, a unit of the British Royal Air Force 90th Fighter Squadron, a unit of the United States
90_Squadron
Belgian compact personal defense weapon
commenced in 1990, when it was known as the Project 9.0 (from which the "90" in its name is derived), whereupon the 5.7×28mm ammunition was redesigned
FN_P90
Health statistic
The 10/90 gap is the term adopted by the Global Forum for Health Research to highlight the finding by the Commission on Health Research for Development
10/90_gap
UFC mixed martial arts event in 2008
UFC 90: Silva vs. Côté was a mixed martial arts (MMA) pay-per-view event held by the Ultimate Fighting Championship (UFC) on October 25, 2008, at the Allstate
UFC_90
The Quota 90 (Italian: Quota novanta) was a controversial revaluation of the lira undertaken by Italian fascist dictator Benito Mussolini, announced on
Quota_90
UFC mixed martial arts event in 2016
UFC Fight Night: dos Anjos vs. Alvarez (also known as UFC Fight Night 90) was a mixed martial arts event held on July 7, 2016 at the MGM Grand Garden Arena
UFC Fight Night: dos Anjos vs. Alvarez
UFC_Fight_Night:_dos_Anjos_vs._Alvarez
Light cabin airplane
The Monocoupe 90 was a two-seat, light cabin airplane built by Donald A. Luscombe for Monocoupe Aircraft. The first Monocoupe (Model 5) was built in an
Monocoupe_90
Southernmost point on Earth
Earth, lying antipodally to the North Pole. It defines geodetic latitude 90° South, as well as the direction of true south. At the South Pole all directions
South_Pole
Ground effect vehicle
The A-90 Orlyonok (Russian: Орлёнок, lit. 'Eaglet') is a Soviet ekranoplan that was designed by Rostislav Evgenievich Alexeyev of the Central Hydrofoil
A-90_Orlyonok
Northernmost point on Earth
Earth, lying antipodally to the South Pole. It defines geodetic latitude 90° North, as well as the direction of true north. At the North Pole all directions
North_Pole
Highway in the United States
Route 90 or U.S. Highway 90 (US 90) is an east–west major United States highway in the Southern United States. Despite the "0" in its route number, US 90 never
U.S._Route_90
Motor vehicle
The Saab 90 is a family car produced by Saab from September 1984 to 1987. It was manufactured at a facility in Uusikaupunki (Nystad), Finland, at that
Saab_90
1982 aircraft accident in Washington, D.C.
Air Florida Flight 90 was a scheduled domestic passenger flight operated from Washington National Airport (now Ronald Reagan Washington National Airport)
Air_Florida_Flight_90
Semiconductor device fabrication technology node
The 90 nm process refers to the technology used in semiconductor manufacturing to create integrated circuits with a minimum feature size of 90 nanometers
90_nm_process
Indian reserve in Ontario, Canada
Winisk 90 is a First Nation reserve and ghost town in the Kenora District in Northern Ontario, situated along the Winisk River. It was destroyed in the
Winisk_90
Series of CPUs by AMD
At the same time, AMD also began to ship the "Winchester" core, based on a 90 nanometer process. Core revisions "Venice" and "San Diego" succeeded all prior
Athlon_64
Early "smartphone" without call function
The Treo 90 is a Palm OS PDA developed by Handspring. It was released on May 28, 2002. The Treo 90 was the only Treo model produced without an integrated
Treo_90
Class of electric multiple unit
The MR-90 was a class of single-level electric multiple unit (EMU) railcar ordered in 1992 at a price of $133,5 million by the Société de Transport de
MR-90
Russian submachine gun
The PP-90 is a Russian 9 mm folding submachine gun, developed by the KBP Instrument Design Bureau in Tula for use with special units of the Russian Ministry
PP-90
Light machine gun
tubular buttstock, also known as the "Machine gun 90" (Swedish: Kulspruta 90). Para model of the Ksp 90. Standard factory FN Minimi with a steel tubular
FN_Minimi
Soviet/Russian main battle tank
has seen service in 40 countries and in numerous conflicts. The Russian T-90 introduced in 1992 and the Chinese Type 99 are further developments of the
T-72
American educational funding policy
The 90–10 rule refers to a U.S. regulation that governs for-profit higher education. It caps the percentage of revenue that a proprietary school can receive
90–10_rule
90
90
Surname or Lastname
English
English : habitational name from either of two places, in Hertfordshire and Surrey, called Puttenham, from the genitive case of the Old English byname Putta, meaning ‘kite’ (the bird) + Old English hÄm ‘homestead’.John Putnam emigrated from England to Salem, MA, before 1641, and established a family that was still prominent in Massachusetts four generations later, including the revolutionary war soldier Israel Putnam (1718–90) and his cousin Rufus Putnam (1738–1824), also a soldier, one of the first settlers in OH.
Male
Irish
Irish name derived from Gaelic fiach, FIACHRA means "raven." In mythology, this is the name of one of the children Lir turned into swans for 900 years.
Surname or Lastname
English
English : status name from Middle English frankelin ‘franklin’, a technical term of the feudal system, from Anglo-Norman French franc ‘free’ (see Frank 2) + the Germanic suffix -ling. The status of the franklin varied somewhat according to time and place in medieval England; in general, he was a free man and a holder of fairly extensive areas of land, a gentleman ranked above the main body of minor freeholders but below a knight or a member of the nobility.The surname is also borne by Jews, in which case it represents an Americanized form of one or more like-sounding Jewish surnames.In modern times, this has been used to Americanize François, the French form of Francis.The American statesman and scientist Benjamin Franklin (1706–90) was the son of Josiah Franklin, a chandler (dealer in soap and candles), who had emigrated in about 1682 from Ecton, Northamptonshire, to Boston, MA, where his son was born.
Surname or Lastname
English
English : habitational name from any of the many places so called, from Old English norð ‘north’ + tūn ‘enclosure’, ‘settlement’. In some cases, it is a variant of Norrington.Irish : altered form of Naughton, assimilated to the English name.Jewish (American) : adoption of the English name in place of some like-sounding Ashkenazic name.Nicholas Norton (1610–90) came from Broadway, Somerset, England, to Weymouth, MA, in 1635–37. In about 1657 he moved to Edgartown on Martha’s Vineyard. He had ten children and many prominent descendants.
Surname or Lastname
English and Scottish
English and Scottish : nickname for a wild or uncouth person, from Middle English, Old French salvage, sauvage ‘untamed’ (Late Latin salvaticus literally ‘man of the woods’, a derivative of Latin silva ‘wood’, influenced by Latin salvus ‘whole’, i.e. natural).Irish : generally of English origin (it was taken to County Down in the 12th century), this name has also sometimes been adopted as equivalent of Gaelic Ó Sabháin, the name of a small south Munster sept, which was earlier Anglicized as O’Savin (see Savin).Americanized form of Ashkenazic Jewish Savich.A Jacob Savage, born in Exeter, Devon, England, in 1604, is recorded in Essex, NJ, by the early 1630s. Edward Savage, of Huguenot descent, emigrated from Ireland to Massachusetts in 1696. His grandson and namesake, who was born in Princeton, MA, in 1761 gained fame as an artist for his portrait of George Washington (1789–90).
90
90
Boy/Male
Dutch, German, Teutonic
Divine Peace
Girl/Female
Muslim/Islamic
She was the daughter of Ahmad bin Mishqar and a distinguished woman of her times; she was the wife of Sayfud-din al- Hanafi. (A.N)
Girl/Female
Tamil
Arianna | அரிஅநà¯à®¨à®¾
Holy one, Peace
Girl/Female
Indian, Punjabi, Sikh
Earning; Tradition; Way
Female
African
Monday-born.
Boy/Male
Australian, Biblical, Christian, Hebrew
Perfect; Agreeable; Retribution
Girl/Female
Tamil
Feelings, Imagination
Surname or Lastname
Irish
Irish : reduced Anglicized form of Gaelic Ó Caollaidhe ‘descendant of Caollaidhe’, a personal name based on caol ‘slender’, ‘graceful’.English : variant of Keighley.Americanized spelling of German Kühle, variant of Kühl (see Kuhl) or of Kühling (see Keeling).
Boy/Male
Hindu
Good, Messenger
Boy/Male
Chinese
Man of virtue.
90
90
90
90
90
n.
The quarter of a circle, or of the circumference of a circle, an arc of 90¡, or one subtending a right angle at the center.
n.
An instrument for measuring altitudes, variously constructed and mounted for different specific uses in astronomy, surveying, gunnery, etc., consisting commonly of a graduated arc of 90¡, with an index or vernier, and either plain or telescopic sights, and usually having a plumb line or spirit level for fixing the vertical or horizontal direction.
n.
A common mineral occurring in monoclinic crystals, with a prismatic angle of nearly 90¡, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all silicates of lime and magnesia with sometimes alumina and iron. Pyroxene is an essential constituent of many rocks, especially basic igneous rocks, as basalt, gabbro, etc.
n.
A leaf containing a certain number of words, hence, a certain number of words in a writing, as in England, in law proceedings 72, and in chancery, 90; in New York, 100 words.
n.
A symbol representing ninety units, as 90 or xc.
n.
One of two great circles intersecting at right angles in the poles of the equator. One of them passes through the equinoctial points, and hence is denominated the equinoctial colure; the other intersects the equator at the distance of 90¡ from the former, and is called the solstitial colure.
a.
An aspect of the heavenly bodies in which they are distant from each other 90¡, or the quarter of a circle; quartile. See the Note under Aspect, 6.
v. i.
To deviate or incline from an angle of 90¡, as a surface; to slant.
n.
The infield; the square space, 90 feet on a side, having the bases at its angles.
n.
A rare element of the carbon-silicon group, intermediate between the metals and nonmetals, obtained from the mineral zircon as a dark sooty powder, or as a gray metallic crystalline substance. Symbol Zr. Atomic weight, 90.4.
a.
The position of one heavenly body in respect to another when distant from it 90¡, or a quarter of a circle, as the moon when at an equal distance from the points of conjunction and opposition.