ascertained Meaning, Definition & Usage

  1. verb establish after a calculation, investigation, experiment, survey, or study
    find out; find; determine; ascertain.
    • find the product of two numbers
    • The physicist who found the elusive particle won the Nobel Prize
  2. verb be careful or certain to do something; make certain of something
    insure; control; see to it; assure; see; ensure; ascertain; check.
    • He verified that the valves were closed
    • See that the curtains are closed
    • control the quality of the product
  3. verb find out, learn, or determine with certainty, usually by making an inquiry or other effort
    learn; watch; see; determine; ascertain; find out; check.
    • I want to see whether she speaks French
    • See whether it works
    • find out if he speaks Russian
    • Check whether the train leaves on time
  4. verb learn or discover with certainty
    ascertain.
  5. adjective satellite discovered or determined by scientific observation
    discovered; observed.
    • variation in the ascertained flux depends on a number of factors
    • the discovered behavior norms
    • discovered differences in achievement
    • no explanation for the observed phenomena

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