from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To direct or draw toward a common center; focus.
- transitive v. To bring into one main body: Authority was concentrated in the president.
- transitive v. To make (a solution or mixture) less dilute.
- intransitive v. To converge toward or meet in a common center.
- intransitive v. To increase by degree; gather: "Dusk began to concentrate into full night” ( Anthony Hyde).
- intransitive v. To direct one's thoughts or attention: We concentrated on the task before us.
- n. A product that has been concentrated, especially a food that has been reduced in volume or bulk by the removal of liquid: pineapple juice concentrate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. , (intransitive) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.
- v. To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; -- opposed to dilute.
- v. To approach or meet in a common center; to consolidate.
- v. To focus one's thought or attention (on).
- n. A substance that is in a condensed form.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force; to fix.
- transitive v. To increase the strength and diminish the bulk of, as of a liquid or an ore; to intensify, by getting rid of useless material; to condense; ; -- opposed to
- intransitive v. To approach or meet in a common center; to consolidate.
from The Century Dictionary and Cyclopedia
- . To bring or draw to a common center or point of union; cause to come close together; bring to bear on one point; direct toward one object; focus: both in literal and in figurative uses.
- Hence To intensify the action of, as by bringing it to bear upon one point; render more intense the properties of, as by removing foreign weakening or adulterating elements; specifically, in chem., to render more intense or pure by removing or reducing the proportion of what is foreign or inessential; rectify.
- In mining, to separate (ore or metal) from the gangue or rock with which it is associated in the lode. See dress, 5 .
- To approach or meet in or around a common point or center: as, the clouds rapidly concentrated in a dense mass.
- To become more intense or pure. See I., 2.
- Reduced to a pure or intense state; concentrated.
- n. That which has been reduced to a state of purity or concentration by the removal of foreign, non-essential, or diluting matter.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the desired mineral that is left after impurities have been removed from mined ore
- v. make central
- v. make more concise
- n. a concentrated example of something
- v. be cooked until very little liquid is left
- v. cook until very little liquid is left
- v. direct one's attention on something
- v. draw together or meet in one common center
- n. a concentrated form of a foodstuff; the bulk is reduced by removing water
- v. compress or concentrate
- v. make denser, stronger, or purer
From concenter.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French concentrer (Wiktionary)