Definition of "concentrate"

concentrate

/ˈkɒn.sən.tɹeɪt/

verb
third-person singular simple present concentrates, present participle concentrating, simple past and past participle concentrated
1. (transitive, intransitive) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.
2. 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.
3. To approach or meet in a common center; to consolidate.
  Quotations
  Buried within the Mediterranean littoral are some seventy to ninety million tons of slag from ancient smelting, about a third of it concentrated in Iberia. This ceaseless industrial fueling caused the deforestation of an estimated fifty to seventy million acres of woodlands.
  2006, Edwin Black, chapter 2, in Internal Combustion‎
4. (intransitive) To focus one's thought or attention (on).
  Quotations
  The Group has recently concentrated on two main objectives, the implementation of a Code of Practice on minor station improvements and the preparation of a stock list of approved items of equipment for railway stations.
  1962 October, Brian Haresnape, “Focus on B.R. passenger stations”, in Modern Railways, page 252
noun
plural concentrates
1. A substance that is in a condensed form.