hypotheses
  假說
  Hy·poth·e·sis n.; pl. Hypotheses
  1. A supposition; a proposition or principle which is supposed or taken for granted, in order to draw a conclusion or inference for proof of the point in question; something not proved, but assumed for the purpose of argument, or to account for a fact or an occurrence; as, the hypothesis that head winds detain an overdue steamer.
     An hypothesis being a mere supposition, there are no other limits to hypotheses than those of the human imagination.   --J. S. Mill.
  2. Natural Science A tentative theory or supposition provisionally adopted to explain certain facts, and to guide in the investigation of others; hence, frequently called a working hypothesis.
  Syn: -- Supposition; assumption. See Theory.
  Nebular hypothesis. See under Nebular.
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  hypothesis
       n 1: a proposal intended to explain certain facts or observations
       2: a tentative theory about the natural world; a concept that
          is not yet verified but that if true would explain certain
          facts or phenomena; "a scientific hypothesis that survives
          experimental testing becomes a scientific theory"; "he
          proposed a fresh theory of alkalis that later was accepted
          in chemical practices" [syn: possibility, theory]
       3: a message expressing an opinion based on incomplete evidence
          [syn: guess, conjecture, supposition, surmise, surmisal,
           speculation]
       [also: hypotheses (pl)]