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Dictionary definition for: Hypothesis
1. (n) a proposal intended to explain certain facts or observations
2. (n) 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
3. (n) a message expressing an opinion based on incomplete evidence
WordNet 2.1 Copyright Princeton University. All rights reserved.
