- 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.
- to put or bring into a single place, group, etc.: The nation's wealth had been concentrated in a few families.
- 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.
- Mining. to separate (metal or ore) from rock, sand, etc., so as to improve the quality of the valuable portion.
- 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.
- to come to or toward a common center; converge; collect: The population concentrated in one part of the city.
- to become more intense, stronger, or purer.
- a concentrated form of something; a product of concentration: a juice concentrate.
Origin of concentrate
1. See contract.
1. dissipate, disperse. 5. diverge.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for concentrative
They are not concentrative, and they are not infallibly courteous, as men are.
We shall give you a practical working knowledge of concentrative mental methods and devices.Psychology and Achievement
He found it demand a concentrative effort, and Harry was very sorry and even ashamed, but he loved least to read that way.Young Blood
E. W. Hornung
C D is also concentrative, though less so than B C, and is more strongly sensational.
I'll see if I can't develop my concentrative faculty and introduce a few of the same performances in our show.The Sorcery Club
- tending to concentrate; characterized by concentration
- to come or cause to come to a single purpose or aimto concentrate one's hopes on winning
- to make or become denser or purer by the removal of certain elements, esp the solvent of a solution
- (tr) to remove rock or sand from (an ore) to make it purer
- (intr often foll by on) to bring one's faculties to bear (on); think intensely (about)
- a concentrated material or solutiontomato concentrate
C17: back formation from concentration, ultimately from Latin com- same + centrum centre
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
Word Origin and History for concentrative
1883, from concentrate (v.).
Online Etymology Dictionary, © 2010 Douglas Harper