A tentative conjecture explaining an observation, phenomenon, or scientific problem that can be tested by further observation, investigation, and/or experimentation.
a message expressing an opinion based on incomplete evidence
a proposal intended to explain certain facts or observations
a concept that is not yet verified but that if true would explain certain facts or phenomena; "he proposed a fresh theory of alkalis that later was accepted in chemical practices"
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
a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
