presupposition Meaning, Definition & Usage

  1. noun the act of presupposing; a supposition made prior to having knowledge (as for the purpose of argument)

WordNet

Pre*sup`po*si"tion noun
Etymology
Pref. pre- + supposition: cf. F. présupposition.
Definitions
  1. The act of presupposing; an antecedent implication; presumption.
  2. That which is presupposed; a previous supposition or surmise.

Webster 1913