English
concentration
Etymology

From concentrate + -ion.

Pronunciation
  • (RP) IPA: /ˌkɒnsənˈtɹeɪʃən/
  • (America) IPA: /ˌkɑnsənˈtɹeɪʃən/
Noun

concentration (uncountable)

  1. The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
    1. The direction of attention to a specific object.
    2. The act, process or product of reducing the volume of a liquid, as by evaporation.
    3. The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water.
  2. A field or course of study on which one focuses, especially as a student in a college or university.
  3. The proportion of a substance in a whole.
    1. (physical chemistry) The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
  4. The matching game pelmanism.
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