exact science

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exact science (plural exact sciences)

  1. (sciences) A field of science such as physics or chemistry which is capable of accurate quantitative expression or precise predictions and rigorous methods of testing hypotheses.
  2. (figuratively, usually as “not to be exact science”) A situation in which the same outcome follows from similar beginnings.
    • 2013, Daniel Taylor, Andros Townsend calms England's nerves in taming of Montenegro (in The Guardian, 11 October 2013)[1]
      It is not an exact science, but if England can play with such distinction again then nobody should be too concerned about everything going horribly wrong.