GNU Collaborative International Dictionary of English

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Found 2 definitions

  1.       
    
    Concentrate , v. t. [imp. & p. p. Concentrated; p. pr. & vb. n. Concentrating.] [Pref. con- + L. centrum center. Cf. Concenter.]
    1. To bring to, or direct toward, a common center; to unite more closely; to gather into one body, mass, or force; to fix; as, to concentrate rays of light into a focus; to concentrate the attention.
      1913 Webster

      (He) concentrated whole force at his own camp.
      Motley.

      1913 Webster

    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; as, to concentrate acid by evaporation; to concentrate by washing; -- opposed to dilute.
      1913 Webster

      Spirit of vinegar concentrated and reduced to its greatest strength.
      Arbuthnot.

      Syn. -- To combine; to condense; to consolidate.

      1913 Webster

  2.       
    
    concentrated adj.
    1. Having a high density of (the indicated substance); as, a narrow thread of concentrated ore. [Narrower terms: undiluted (vs. diluted)]
      WordNet 1.5
    2. Gathered together or made less diffuse; as, their concentrated efforts; his concentrated attention. Opposite of distributed or diffused. [Narrower terms: bunched, bunchy, clustered; centered, centred, centralized, focused; undivided] [Also See: compact.]
      WordNet 1.5
    3. Intense; in an extreme degree; -- of mental phenomena; as, her concentrated passion held them at bay.
      WordNet 1.5
    4. being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance. Opposite of dilute or unsaturated. [Narrower terms: supersaturated]
      Syn. -- saturated.
      WordNet 1.5
    5. reduced to a stronger or more concentrated form; as, concentrated sulfuric acid. Opposite of diluted.
      Syn. -- condensed.
      WordNet 1.5
    6. characterized by intensity; especially when imposed from without; -- of actions; as, concentrated study.
      Syn. -- intensive.
      WordNet 1.5
    7. characterized by mental concentration.
      Syn. -- intent.
      WordNet 1.5
      +PJC

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