hypothesis
n.
explanation which gives a reason for observed phenomena, theory (especially in the sciences); supposition, assumption
Hypothesis
Hypothesis
(n.)
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.
(n.)
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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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hypothesis
A tentative proposal made to explain certain observations or facts that requires further investigation to be verified.
Hypothesis
a testable, unproved assumption, based on collected data.