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1. 
a. a small flat disc of wood, metal, or plastic, used in various board games
b. a similar disc or token used as an imitation coin
2. a skating figure consisting of three circles

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1. an apparatus that records the number of occurrences of events
2. any instrument for detecting or counting ionizing particles or photons
3. Electronics another name for scaler

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1. a return attack, such as a blow in boxing
2. Fencing a parry in which the foils move in a circular fashion
3. the portion of the stern of a boat or ship that overhangs the water aft of the rudder
4. the part of a horse's breast under the neck and between the shoulders
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

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A horizontal work surface, display, or serving surface, such as in a store, in a restaurant, or on top of a kitchen cabinet.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

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[′kau̇nt·ər]
(computer science)
A register or storage location used to represent the number of occurrences of an event.
(electronics)
(engineering)
A complete instrument for detecting, totalizing, and indicating a sequence of events.
(naval architecture)
(nucleonics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

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1. A long horizontal surface used in stores, shops, banks, etc., for display of goods, for work-top areas, or for business transactions.
2. The top or working surface of the base of a kitchen cabinet.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

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(1) In programming, a variable that is used to keep track of anything that must be counted. The programming language determines the number of counters (variables) that are available to a programmer.

(2) In electronics, a circuit that counts pulses and generates an output at a specified time.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
A 77-mm circular template was used when counting plates manually, to match the automated colony counter's fixed counting region.
Val Burton, Laboratory Supervisor at Pukka Pies said: "Our previous colony counter was white light based, which gave us a reflection problem, especially when we were counting white colonies on TVC media.
Automated microbiological systems manufacturer, Synbiosis, has introduced aCOLyte, an automated colony counter for laboratories with the need for speed and accuracy, low budgets notwithstanding.
Schleicher & Schuell UK have added a new colony counter to their range.
Synbiosis, manufacturers of automated microbiological systems have announced that a study using the ProtoCOL RGB advanced colony counter demonstrated significantly increased productivity when testing food for bacteria.
Automated colony counters range from professional models costing thousands of dollars to phone apps costing under $100.
The laboratory instruments are further categorized into anaerobic gas systems, automated gram stainers, automated petri dish fillers, autoclave sterilizers, bacterial colony counters, incubators, microbial air samplers, and other laboratory instruments; whereas the microbiology analyzers are further categorized into mass spectrometers, microscopes, and molecular diagnostics instruments.
Martin continued: “Being able to accurately enumerate so many types of colonies on different agars is a task very few automated colony counters can perform well and this study validates the ProtoCOL 3's versatility for this application.
They are also suited for OEM life science instrumentation, such as gel and blot imagers, real-time PCR systems, cytometers, colony counters, microplate readers, gene array readers, ELSD detectors for HPLC and label-free systems using Surface Plasmon Resonance.