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concentrate

[kon-suh n-treyt] /ˈkɒn sənˌtreɪt/
verb (used with object), concentrated, concentrating.
1.
to bring or draw to a common center or point of union; converge; direct toward one point; focus:
to concentrate one's attention on a problem; to concentrate the rays of the sun with a lens.
2.
to put or bring into a single place, group, etc.:
The nation's wealth had been concentrated in a few families.
3.
to intensify; make denser, stronger, or purer, especially by the removal or reduction of liquid:
to concentrate fruit juice; to concentrate a sauce by boiling it down.
4.
Mining. to separate (metal or ore) from rock, sand, etc., so as to improve the quality of the valuable portion.
verb (used without object), concentrated, concentrating.
5.
to bring all efforts, faculties, activities, etc., to bear on one thing or activity (often followed by on or upon):
to concentrate on solving a problem.
6.
to come to or toward a common center; converge; collect:
The population concentrated in one part of the city.
7.
to become more intense, stronger, or purer.
noun
8.
a concentrated form of something; a product of concentration:
a juice concentrate.
Origin of concentrate
1630-1640
1630-40; concentr(ic) + -ate2; compare French concentrer, Italian concentrare
Related forms
concentrative
[kon-suh n-trey-tiv, kuh n-sen-truh-] /ˈkɒn sənˌtreɪ tɪv, kənˈsɛn trə-/ (Show IPA),
adjective
concentrativeness, noun
concentrator, noun
nonconcentrative, adjective
nonconcentrativeness, noun
overconcentrate, verb, overconcentrated, overconcentrating.
preconcentrate, noun, verb, preconcentrated, preconcentrating.
reconcentrate, verb, reconcentrated, reconcentrating.
unconcentrative, adjective
Synonyms
1. See contract.
Antonyms
1. dissipate, disperse. 5. diverge.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for concentrator
Historical Examples
  • It is the province of a concentrator to materialize these possibilities.

    Professor Huskins Lettie M. Cummings
  • The concentrator consists of a tank containing water within which is supported a vessel F having double walls.

  • The vapors from the top of the column pass off to the wash heater or to a concentrator.

  • Along in the early 70s he erected the first concentrator in the Rocky mountains284 on the Rumley mine.

    Then and Now Robert Vaughn
  • This company afterwards erected the first concentrator in Idaho, at Wardner.

    Then and Now Robert Vaughn
  • In the television screen, Craven leaped from his chair, was staring with Stutsman at the place where the concentrator had stood.

    Empire Clifford Donald Simak
  • Peter Wagner erected a five-stamp mill and a concentrator, the first which could treat base ores.

    The Pinos Altos Story Dorothy Watson
  • The concentrator at the writing table, looking up vaguely, perceived the general joust.

    Our Next-Door Neighbors Belle Kanaris Maniates
  • A few minutes ago I decided to reverse my concentrator and aim at a higher goal.

    'Charge It' Irving Bacheller
  • A concentrator capable of handling 4,000 tons of ore per day is nearing completion.

    An African Adventure Isaac F. Marcosson
British Dictionary definitions for concentrator

concentrate

/ˈkɒnsənˌtreɪt/
verb
1.
to come or cause to come to a single purpose or aim: to concentrate one's hopes on winning
2.
to make or become denser or purer by the removal of certain elements, esp the solvent of a solution
3.
(transitive) to remove rock or sand from (an ore) to make it purer
4.
(intransitive) often foll by on. to bring one's faculties to bear (on); think intensely (about)
noun
5.
a concentrated material or solution: tomato concentrate
Derived Forms
concentrator, noun
Word Origin
C17: back formation from concentration, ultimately from Latin com- same + centrumcentre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for concentrator

concentrate

v.

1630s, "to bring or come to a common center," from concenter (1590s), from Italian concentrare, from Latin com- "together" (see com-) + centrum "center" (see center). Meaning "condense" is from 1680s. Sense of "mentally focus" is c.1860. Related: Concentrated; concentrating.

n.

1883, from concentrate (v.).

Online Etymology Dictionary, © 2010 Douglas Harper
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concentrator in Technology

communications
A device that combines the data streams from many simultaneously active inputs into one shared channel in such a way that the streams can be separated after transmission. The concentrator's output bandwidth must be at least as great as the total bandwidth of all simultaneously active inputs. A concentrator is one kind of multiplexing device.
For example, a concentrator may be used to connect 24 2400 bps TTYs to a host via a 57600 bps channel.
(2000-03-01)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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