What does "postulate" mean?

Postulate: (Geom.) The enunciation of a self-evident problem, in distinction from an axiom, which is the enunciation of a self-evident theorem. The distinction between a postulate and an axiom lies in this, -- that the latter is admitted to be self-evident, while the former may be agreed upon between two reasoners, and admitted by both, but not as proposition which it would be impossible to deny. Eng. Cyc.

Additional senses

  1. 2.Postulated. [Obs.] Hudibras.
  2. 3.To beg, or assume without proof; as, to postulate conclusions.
  3. 4.To take without express consent; to assume. The Byzantine emperors appear to have . . . postulated a sort of paramount supremacy over this nation. W. Tooke.
  4. 5.To invite earnestly; to solicit. [Obs.] Bp. Burnet.

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