Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for hypothesis from the 1913 edition of Webster's Revised Unabridged Dictionary. Define hypothesis using one of the most comprehensive free online dictionaries on the web.

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hypothesis
Part of Speech: noun
Results: 2
1. 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.
2. 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.
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