英和和英

発音

• (英国発音) IPA: /ˈkɒn.sən.tɹeɪt/
• (米国発音) IPA: /ˈkɑn.sən.tɹeɪt/

動詞

concentrate (third-person singular simple present concentrates, present participle concentrating, simple past and past participle concentrated)

1. (ergative) To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force.

   to concentrate rays of light into a focus

   to concentrate the attention

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.

   Antonym: dilute

   to concentrate acid by evaporation

   to concentrate by washing

3. To approach or meet in a common center; to consolidate.

   Population tends to concentrate in cities.

   • 2006, Edwin Black, chapter 2, in Internal Combustion‎:

     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.

4. (intransitive) To focus one's thought or attention (on).

   Synonyms: think, bury (oneself)

   Let me concentrate!

   • 1962 October, Brian Haresnape, “Focus on B.R. passenger stations”, in Modern Railways, page 252:

     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.

派生語

関連する語

• concentration

語源 2

From Medieval Latin/New Latin concentrātus, perfect passive participle of concentrō (“concentate”). See Etymology 1 and -ate (adjective-forming suffix) for more.

形容詞

concentrate (comparative more concentrate, superlative most concentrate)

1. concentrated
   • 1758, Robert Dossie, The Handmaid to the Arts, volume I., page 114:

     It is, when good, a concentrate yellow.

   • 2011, v. 80/1, Optimizing Use of Aircraft Deicing & Anti-icing Fluids (ACRP):

     Subtracting the liters of concentrate fluid required in the diluted operation.

語源 3

From a substantivation of the above adjective. See also -ate (noun-forming suffix). Compare French concentré and German Konzentrat.

名詞

concentrate (plural concentrates)

1. A substance that is in a condensed form.

   orange concentrate

派生語

アナグラム

• concertante