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Adjective: ascertained  ,a-su(r)'teynd
  1. Found or determined by scientific observation
    "variation in the ascertained flux depends on a number of factors";
    - discovered, observed
Verb: ascertain  ,a-su(r)'teyn
  1. Establish after a calculation, investigation, experiment, survey, or study
    "ascertain the product of two numbers";
    - determine, find, find out
  2. Be careful or certain to do something; make certain of something
    - see, check, insure, see to it, ensure, control, assure
  3. Find out, learn, or determine with certainty, usually by making an inquiry or other effort
    "ascertain whether the train leaves on time";
    - determine, check, find out, see, watch, learn
  4. Learn or discover with certainty

See also: determined

Type of: discover, find out, get a line, get wind, get word, hear, learn, pick up, see, verify