Search references for BELL SYSTEM. Phrases containing BELL SYSTEM
See searches and references containing BELL SYSTEM!BELL SYSTEM
American telephone service monopoly (1877–1984)
The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company
Bell_System
1982 US government action ending telephone monopoly
The Bell System held a virtual monopoly over telephone infrastructure in the United States from around the early 20th century until January 8, 1982. It
Breakup_of_the_Bell_System
Chamber for transporting divers vertically through the water
diving bell is not designed to move under the control of its occupants, or to operate independently of its launch and recovery system. The wet bell is a
Diving_bell
Research and scientific development company
awarded for work completed at Bell Laboratories. Bell Labs had its origin in the complex corporate organization of the Bell System telephone conglomerate. The
Bell_Labs
Educational method
The monitorial system, also known as Madras system, Lancasterian system/Lancasterism or the Bell system of instruction, was an education method that took
Monitorial_system
Canadian telecommunications company
Bell Canada (commonly referred to as Bell) is a Canadian telecommunications company headquartered at 1 Carrefour Alexander-Graham-Bell in the borough of
Bell_Canada
Southwestern American subsidiary of AT&T
While part of the Bell System, it was at times the biggest Bell Operating Company of AT&T's 22 local telephone companies. Southwestern Bell continued to grow
Southwestern_Bell
Inventor of the telephone (1847–1922)
Alexander Graham Bell (/ˈɡreɪ.əm/ ; born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and
Alexander_Graham_Bell
Family of computer operating systems
multi-user computer operating systems that derive from the original AT&T Unix, the development of which started in 1969 at the Bell Labs research center by
Unix
Telecommunications device
local communications system can be compromised. Telephones portal Bell System – American telephone service monopoly (1877–1984) Bell Telephone Memorial –
Telephone
American communications services provider
establishment in the United States in 1983 as part of the break-up of the Bell System, the company's name changed to Telcordia Technologies after a change
Iconectiv
Academic journal
yearly by the IEEE society. The journal was originally established as The Bell System Technical Journal (BSTJ) in New York by the American Telephone and Telegraph
Bell_Labs_Technical_Journal
Wireless telecommunications device
popular as of July 2016. In 1962, the Bell System, the U.S. telephone monopoly, presented its Bellboy radio paging system at the Seattle World's Fair. Bellboy
Pager
Defunct American telecommunications company
BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta
BellSouth
American telecommunications company
as Southwestern Bell Corporation (SBC Communications) after the Bell System breakup. The original AT&T was created by American Bell Telephone on March
AT&T
Quantum states of two qubits
depends on which Bell's state the two qubits are in initially. Bell's states can be generalized to certain quantum states of multi-qubit systems, such as the
Bell_state
American telecommunications firm
subsidiary was the Bell Telephone Manufacturing Company (BTM), established by Hubbard at Antwerp, Belgium, in 1882. The Bell System's Bell Telephone Company
Bell_Telephone_Company
Mixed-use commercial complex in Holmdel, New Jersey
It functioned as a research and development facility for the Bell System and later Bell Labs between 1962 and 2007. The centerpiece of the campus, a modernist
Bell_Labs_Holmdel_Complex
telephones in the Bell System installed in Norfolk, Virginia. Telephones that lacked dials and touch-tone pads were no longer made by the Bell System after 1978
Timeline_of_the_telephone
Telecommunication signaling system
communications devices and switching centers. DTMF was first developed in the Bell System in the United States, and became known under the trademark Touch-Tone
DTMF_signaling
U.S. regional telephone company created by 1984 break of AT&T
as an "ILEC" (Incumbent Local Exchange Carrier) they were the former Bell System or Independent Telephone Company responsible for providing local telephone
Regional Bell Operating Company
Regional_Bell_Operating_Company
American telecommunications company
company was formed in 1983 as Bell Atlantic as a result of the breakup of the Bell System into seven companies, each a Regional Bell Operating Company (RBOC)
Verizon
Television series
The Bell System Science Series consists of nine television specials made for the AT&T Corporation that were originally broadcast in color between 1956
The Bell System Science Series
The_Bell_System_Science_Series
American computer company (1986–2008)
Packard Bell Corporation from Teledyne; in spite of similarities in their names, Packard Bell has no connection to either Hewlett-Packard or Bell System. Packard
Packard_Bell
Research distributed operating system
Plan 9 from Bell Labs is an operating system designed by the Computing Science Research Center (CSRC) at Bell Labs in the mid-1980s, built on the UNIX
Plan_9_from_Bell_Labs
Integrated telephone numbering plan of twenty North American countries
Plan by the American Telephone and Telegraph Company (AT&T) for the Bell System and the independent telephone companies in North America. The first task
North_American_Numbering_Plan
Call assistance services
continued to be available, often at higher cost, for all calls; in the US Bell System an operator-assisted call carried a 50% premium for the first three minutes
Operator_assistance
1948 scholarly article by Claude Shannon
Communication" is an article by mathematician Claude Shannon published in Bell System Technical Journal in 1948. It was renamed The Mathematical Theory of
A Mathematical Theory of Communication
A_Mathematical_Theory_of_Communication
Commercial modem
Retrieved 2017-07-01. Data Set 101C: Identification and Operation (PDF). Bell System Practices. AT&T Co. March 1963. Weber, Laurance A. (1959). "A frequency-modulation
Bell_101
Carrier system for digital transmission of multiplexed telephone calls
The T-carrier system is a member of the series of data-multiplexing carrier systems developed by AT&T Bell Laboratories for digital transmission of multiplexed
T-carrier
Modem standard developed by Bell System in 1976
The Bell 202 modem was an early (1976) modem standard developed by the Bell System. It specifies audio frequency-shift keying (AFSK) to encode and transfer
Bell_202
Type of American telephones by the Bell System
The Princess telephone was introduced by the Bell System in 1959. It was a compact telephone designed for convenient use in the bedroom, and contained
Princess_telephone
Percussion instrument
hammer, or—in small bells—by a small loose sphere enclosed within the body of the bell (jingle bell). Bells are usually cast from bell metal (a type of bronze)
Bell
Telephone company in California
from the 1910s through the 1984 Bell System divestiture was The Pacific Telephone and Telegraph Company. The “Pacific Bell” was phased out of public use
Pacific_Bell
Telephone which has buttons or keys for dialing
practical. The Bell System selected Findlay, Ohio as the first city in the U.S. for marketing tests of touch-tone service and Ohio Bell began installing
Push-button_telephone
Defunct American telephone company
days of the Bell System. The company operated from 1926, with roots tracing further back than that, until 2000, when it was acquired by Bell Atlantic, which
GTE
Set of telephony signaling protocols
Service (SMS), and other services. The protocol was introduced in the Bell System in the United States by the name Common Channel Interoffice Signaling
Signalling_System_No._7
North American local directory assistance number
crossbar switching equipment installed by the Bell System was prevalent. However, in smaller Bell System cities as well as almost all areas served by GTE
411_(telephone_number)
Telephone electronic switching system
Electric for the American Telephone and Telegraph Company (AT&T) and the Bell System in the United States. It came into service in 1982 and the last unit
5ESS_Switching_System
Technical documentation series
The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing
Bell_System_Practices
usually the largest company in the U.S. in terms of assets. In 1900, the Bell system plant was valued at $181 million; operating revenue included $32 million
History of the telephone in the United States
History_of_the_telephone_in_the_United_States
Scientific study of digital information
Shannon's classic paper "A Mathematical Theory of Communication" in the Bell System Technical Journal in July and October 1948. Historian James Gleick rated
Information_theory
Keypad that appears on some telephones
standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary
Telephone_keypad
Telecommunication network interface
invention at Bell Labs by 1973, the standard was first defined in the Universal Service Ordering Code (USOC) system of the Bell System in the United
Registered_jack
Device for hacking telephone networks
November 1960, an article in the Bell System Technical Journal provided an overview of the technical details of signaling systems, and disclosed the frequencies
Blue_box
Logarithmic unit expressing the ratio of physical quantities
of the early 20th century in the Bell System in the United States. The bel was named in honor of Alexander Graham Bell, but the bel is seldom used. Instead
Decibel
American telecommunications company (1885–2024)
services to businesses, consumers, and government agencies. During the Bell System's long history, AT&T was at times the world's largest telecommunications
AT&T_Corporation
Hacking of analog telephone network
Teenagers and Outlaws Who Hacked Ma Bell". Wired. "Bell System Technical Journal, v43: i5 September 1964". Bell System Technical Journal. 43 (5). September
Phreaking
Former telephone company
subsidiary of the Bell System. It was a division of Southwestern Bell Corporation. It continued to operate as Southwestern Bell Mobile Systems until 2000, when
Southwestern Bell Mobile Systems
Southwestern_Bell_Mobile_Systems
Telephone area code history of North America
forwarding telephone calls between regional switching points. For the Bell System this was the first test to let their long-distance operators dial calls
Original North American area codes
Original_North_American_area_codes
Alphanumeric telephone numbering plan
companies, not part of the Bell System, also did not implement central office names. In 1915, newly developed panel switching systems were tested in the Mulberry
Telephone_exchange_names
1935–1960 American aircraft manufacturer
Control System for the Mercury Spacecraft, North American X-15, and Bell Rocket Belt. The company was purchased in 1960 by Textron, and lives on as Bell Textron
Bell_Aircraft
American telecommunications company
Cincinnati Bell was founded in 1873 as a telegraph company and for much of its history was a Bell System franchisee. In the 1990s, Cincinnati Bell expanded
Altafiber
Form of color code used in wiring
cables with polyethylene-insulated conductors (PIC) by Bell Laboratories for the Bell System in the 1950s, new methods were developed to mark each individual
25-pair_color_code
Audible electrical signal in telecommunication systems
played synchronously. Various telecommunication groups, such as the Bell System and the General Post Office (GPO) developed standards, in part taken
Ringing_tone
Institute of Technology, Bell Labs, and General Electric were jointly developing an experimental time-sharing operating system called Multics for the GE-645
History_of_Unix
Telecommunication system for establishing telephone calls
calculations. In the 1940s, the Bell System in the United States and Canada introduced a nationwide numbering system that identified central offices with
Telephone_exchange
Microsoft Unix operating system
Microsoft published Xenix in 1980. One consequence of the breakup of the Bell System in the late 1970s was that AT&T started marketing UNIX themselves in
Xenix
Coin or card-operated public telephone
which once had 30,000, removed its last public payphone in 2022. The Bell System & GTE 3-slot and single slot payphones took nickels (5¢), dimes (10¢)
Payphone
Device for sending telephone numbers
about 1907. While used in telephone systems of the independent telephone companies, rotary dial service in the Bell System in the United States was not common
Rotary_dial
American crypto-anarchist
James Dalton Bell (born 1958) is an American crypto-anarchist who created the idea of arranging for anonymously sponsored assassination payments via the
Jim_Bell
Provision of baseline level of services to every resident of a country
competitor in Bell markets. These independent phone companies did not interconnect to the Bell System; though modern commentators suggest Bell refused to
Universal_service
American graphic designer (1920–1996)
version of the Bell System logo in 1969, as well as AT&T Corporation's first globe logo in 1983 after the breakup of the Bell System. He died from non-Hodgkin's
Saul_Bass
Type of American telephone set
domestic desk telephone set issued by the Bell System in North America from 1950 through the 1984 Bell System divestiture. The successor to the model 302
Model_500_telephone
network (PSTN). In the United States and Canada, the Bell System network topology was the switching system hierarchy implemented and operated from c. 1930
PSTN_network_topology
Former Bell Operating Company serving the Southeastern United States
off to form South Central Bell. In 1984, it became a subsidiary of BellSouth Corporation in the breakup of the Bell System. The company was originally
Southern_Bell
Telephone directory of businesses
as well as the "Walking Fingers" logo introduced in the 1970s by the Bell System–era AT&T, are registered trademarks, though the owner varies from country
Yellow_pages
Former telephone company in the US
1984 (just after the breakup of the Bell System). It was later merged with Mountain Bell and the Pacific Northwest Bell in the late 1980s and then phased
Northwestern_Bell
Cast iron or cast steel ball with a handle attached to the top
USING SCHMIDT'S Celebrated 'MONARCH' DUMB-BELL, BAR BELL AND KETTLE BELL SYSTEM"; also spelled KETTLE-BELLS (with hyphen) in a 1910 advertisement for
Kettlebell
Original Unix operating system from Bell Labs
versions of the Unix operating system for DEC PDP-7, PDP-11, VAX, and Interdata 7/32 and 8/32 computers, developed in the Bell Labs Computing Sciences Research
Research_Unix
Telephone system typically used in business environments
Key was a Bell System term of art for a customer-controlled switching system such as the line buttons on the phones associated with such systems. The electrical
Business_telephone_system
American mathematician (1916–2001)
the Claude Shannon Memorial Park. After the breakup of the Bell System, the part of Bell Labs that remained with AT&T Corporation was named Shannon Labs
Claude_Shannon
American industrialist (1845–1920)
consolidate telephone networks under the Bell system. In 1913, he oversaw the Kingsbury Commitment that led to a more open system for connection. Theodore was born
Theodore_Newton_Vail
American electrical engineering and manufacturing company
purchasing agent for all telephone equipment for the Bell System from 1881 until 1984, when the Bell System was dismantled. For much of the 20th century, Western
Western_Electric
Former American telecommunications company
on January 1, 1984, as the result of the breakup of the Bell System, NYNEX was a Regional Bell Operating Company which was made up of former subsidiaries
NYNEX
Telephone message stating a call cannot be completed
introduced by Bell Systems in 1941, and was intended to sound distinct from other telephone signalling used at the time. According to a document from Bell Labs
Intercept_message
providers. The seven Regional Bell Operating Companies (RBOCs) were created as the result of the break-up of the Bell System in 1984. After numerous mergers
List of United States telephone companies
List_of_United_States_telephone_companies
Distributed operating system
Inferno is a distributed operating system started at Bell Labs and now developed and maintained by Vita Nuova Holdings as free software under the MIT License
Inferno_(operating_system)
Former United States emergency warning system
Emergency Broadcast System (EBS), sometimes called the Emergency Action Notification System (EANS), was an emergency warning system used in the United
Emergency_Broadcast_System
Type of American telephones by the Bell System
Company for the American Telephone and Telegraph Company (AT&T) and the Bell System. The series features the mouthpiece (transmitter) and the earpiece (receiver)
Western Electric hand telephone sets
Western_Electric_hand_telephone_sets
Book that lists phone numbers of people and businesses
volume. The slogan "Let Your Fingers Do the Walking", introduced by the Bell System, refers to use of Yellow Pages phone books. The advent of the Internet
Telephone_directory
Electrical connector commonly used in telephone and computer networks
headsets. Modular connectors were originally developed for use on specific Bell System telephone sets in the 1960s, and similar types found use for simple interconnection
Modular_connector
Telecommunications history
and sales in return for its offer to split the Bell System by divesting itself of ownership of the Bell Operating Companies in 1982. AT&T Corporation was
History_of_AT&T
Sequence of digits assigned to a telephone subscription
the same country code with the U.S. (due to Bell Canada's previous ownership by the U.S.-based Bell System), regulation is mainly through the Canadian
Telephone_number
Connectors for wiring of telephone equipment
that contained the telephone hybrid and a ringer. For this purpose, Bell System engineers developed a cube-shaped four-prong plug (type no. 283) with
Telephone_jack_and_plug
Bells rung in schools
address/bell is sounding. In October 2010, Mackie Academy in Stonehaven, Kincardineshire, Scotland, took the move to turn off their school bell system, following
School_bell
American telecommunications company
services. AT&T Long Lines was concerned with distance communications in the Bell System and used multiple mediums to provide distance communication such as by
AT&T Communications (1984–2010)
AT&T_Communications_(1984–2010)
Topics referred to by the same term
Bell Telephone refers to the Bell System of companies, led by the Bell Telephone Company and later by AT&T, which provided telephone services to much of
Bell Telephone (disambiguation)
Bell_Telephone_(disambiguation)
Modem for computers released by AT&T in 1962
The Bell 103 modem or Bell 103 dataset was the second commercial modem for computers, released by AT&T Corporation in 1963. It allowed digital data to
Bell_103
North American telephone switching technology
Toll Dialing was a telephone call routing and toll-switching system for the Bell System and the independent telephone companies in the United States and
Operator_Toll_Dialing
Canadian telecommunications company (1895–2013)
1949, Northern Electric was owned mostly by Bell Canada and the Western Electric Company of the Bell System, producing large volumes of telecommunications
Nortel
1975 British TV film by David Greene
one and a half million dollars. Bell Telephone Company sponsored, and the film was shown as part of the Bell System Family Theatre. Richard Chamberlain
The Count of Monte Cristo (1975 film)
The_Count_of_Monte_Cristo_(1975_film)
National personification of the United States
200th Birthday, The Telephone's 100th Birthday" by Stanley Meltzoff for Bell System. In 1989, "Uncle Sam Day" became official. A Congressional joint resolution
Uncle_Sam
Telecommunications utility company in Illinois, USA
1984 Bell System Divestiture, Illinois Bell became a part of Ameritech, one of the 7 original Regional Bell Operating Companies. The Illinois Bell name
Illinois_Bell
Collection of electronic switches arranged in a matrix
crossbar switch was the Bell company Western Electric's coordinate selector of 1915. To save money on control systems, this system was organized on the stepping
Crossbar_switch
Former telephone company in Ohio, US
Ohio Bell is not affiliated with Cincinnati Bell, which serves Cincinnati, Ohio and other surrounding communities. After the 1984 Bell System Divestiture
Ohio_Bell
Analog multiplexing technique used in early telephone systems
advantages of the method The N-1 system, described in 1951 by the Bell System, was a 12-channel vacuum-tube-based system. It used two frequency ranges,
Carrier_telephony
Type of American telephones by the Bell System
that was produced by Western Electric, the manufacturing unit of the Bell System. These telephones were first introduced in 1965 and are formally referred
Trimline_telephone
Dark ride at Epcot
materials processing. Spaceship Earth was originally sponsored by the Bell System from 1982 until 1984, when it was broken into smaller companies and its
Spaceship_Earth_(Epcot)
Former telecommunications and networking company
instrumental in legal and regulatory changes that led to the breakup of the Bell System and introduced competition in the U.S. telephone industry. Its MCI Mail
MCI_Communications
BELL SYSTEM
BELL SYSTEM
Surname or Lastname
English
English : topographic name for someone who lived near a spring or stream, Middle English well(e) (Old English well(a)).German : from a short form of the personal names Wallo, Walilo.German : nickname from Middle High German wël ‘round’.
Surname or Lastname
English
English : nickname for a strong, aggressive, bull-like man, from Middle English bul(l)e, bol(l)e. Occasionally, the name may denote a keeper of a bull. Compare Bulman.German (mainly northern) : from a byname for a cattle breeder, keeper, or dealer. Compare South German Ochs.South German : nickname for a short fat man, a variant of Bolle, or a nickname for a man with the physical characteristics of a bull.
Boy/Male
French English
Handsome.
Female
English
Variant spelling of English Belle, BELL means "beautiful."Â
Girl/Female
Christian & English(British/American/Australian)
Beautiful
Male
English
Pet form of English William, BILL means "will-helmet."
Surname or Lastname
English and North German
English and North German : metonymic occupational name for a leather belt or strap maker, from Middle English belt(e), Middle Low German balt.German : from a short form of the Germanic personal name Baldher (see Belter).North German : habitational name from a place called Beelte (see Belter 2).
Girl/Female
Czechoslovakian American English French German Latin Spanish
White.
Surname or Lastname
English (chiefly northern)
English (chiefly northern) : topographic name for someone who lived by an area of high ground or by a prominent crag, from northern Middle English fell ‘high ground’, ‘rock’, ‘crag’ (Old Norse fjall, fell).English, German, and Jewish (Ashkenazic) : metonymic occupational name for a furrier, from Middle English fell, Middle High German vel, or German Fell or Yiddish fel, all of which mean ‘skin’, ‘hide’, or ‘pelt’. Yiddish fel refers to untanned hide, in contrast to pelts ‘tanned hide’ (see Pilcher).
Male
English
Variant spelling of English Abel, ABELL means "vanity," i.e. "transitory."
Female
English
Pet form of English Eleanor, NELL means "foreign; the other."
Male
Welsh
Variant spelling of Welsh Bel, BELI means "shining."
Surname or Lastname
English and Scottish
English and Scottish : variant spelling of Beal.Ninian Beall, a Scottish Royalist, emigrated to Calvert co., MD, in about 1650, after King Charles I was beheaded.
Male
Hebrew
(בֶּלַע) Hebrew name BELA means "destruction." In the bible, this is the name of several characters, including a king of Edom.
Girl/Female
Japanese
Ball; bell.
Boy/Male
British, English, Hindu, Indian
From Bell; Stomach
Surname or Lastname
English and German
English and German : from a Germanic personal name, either a short form of compound names such as Billard, or else a byname Bill(a), from Old English bil ‘sword’, ‘halberd’ (or a Continental cognate). (Bill as a short form of William was not used until the 17th century.)English : metonymic occupational name for a maker of pruning hooks and similar implements, from Middle English bill, from Old English bil ‘sword’, with the meaning shifted to a more peaceful agricultural application (see Biller 5).
Male
English
Short form of English unisex Kelly, KELL means "bright-headed."
Girl/Female
British, English, French, German, Netherlands, Romanian
Form of Beli
Boy/Male
Australian, French, Swedish
Handsome Friend; God Promise; Beautiful
BELL SYSTEM
BELL SYSTEM
Boy/Male
Muslim
Boy/Male
Assamese, Hindu, Indian, Kannada, Marathi, Oriya, Sanskrit, Tamil, Telugu
Master of the Mountains
Boy/Male
Indian, Punjabi, Sikh
Contemplation of All
Female
French
Feminine form of French Stéphane, STÉPHANIE means "crown."Â
Boy/Male
American, British, English
Lives at the Hall's Slopes
Boy/Male
Hindu
Peace
Boy/Male
Australian, Greek, Swedish
People's Victory; Victory of the People
Surname or Lastname
English
English : habitational name from a place in Somerset named Chew Magna, which is named for the river on which it stands, a Celtic name, perhaps cognate with Welsh cyw ‘young animal or bird’, ‘chicken’.English : habitational name from places called Chew, in West Yorkshire and in the parish of Billington, Lancashire, named with Old English cēo ‘fish gill’, used in the transferred sense of a ravine, in a similar way to Old Norse gil.English : derogatory nickname from Middle English chowe ‘chough’, Old English cēo, a bird closely related to the crow and the jackdaw, notorious for its chattering and thieving.Korean : variant of Chu.Chinese : variant of Zhao.
Girl/Female
Arabic, Muslim
Another Name for Hazrat Fatimah Zahra; Good; Pleasant; Agreeable
Boy/Male
Tamil
Avirbhav | அவிரà¯à®ªà®¾à®µ
The exact meaning of this name would be evolution also can mean progress
BELL SYSTEM
BELL SYSTEM
BELL SYSTEM
BELL SYSTEM
BELL SYSTEM
n.
Any paper, containing a statement of particulars; as, a bill of charges or expenditures; a weekly bill of mortality; a bill of fare, etc.
n.
A cell; a house.
n.
See Sanctus bell, under Sanctus.
n.
The bell, or boom, of the bittern
n.
The strikes of the bell which mark the time; or the time so designated.
n.
Anything that resembles a belt, or that encircles or crosses like a belt; a strip or stripe; as, a belt of trees; a belt of sand.
v. t.
To put a bell upon; as, to bell the cat.
v. t.
To make bell-mouthed; as, to bell a tube.
v. t.
To pour forth, as from a well.
v. t.
To form or wind into a ball; as, to ball cotton.
n.
Alt. of Sancte bell
n.
Anything in the form of a bell, as the cup or corol of a flower.
v. i.
To develop bells or corollas; to take the form of a bell; to blossom; as, hops bell.
v. t.
To charge or enter in a bill; as, to bill goods.
a.
Hung with a bell or bells.
a.
Expanding at the mouth; as, a bell-mouthed gun.
a.
Of or pertaining to a bull; resembling a bull; male; large; fierce.
v. t.
To endeavor to raise the market price of; as, to bull railroad bonds; to bull stocks; to bull Lake Shore; to endeavor to raise prices in; as, to bull the market. See 1st Bull, n., 4.
a.
Having the shape of a wide-mouthed bell; campanulate.
n.
A hollow perforated sphere of metal containing a loose ball which causes it to sound when moved.