Main entry: theory, possibility, hypothesis
Definition: a tentative insight into the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
Usage: 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
Main entry: theory
Definition: a belief that can guide behavior
Usage: the architect has a theory that more is less; they killed him on the theory that dead men tell no tales
Main entry: theory
Definition: a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena
Usage: theories can incorporate facts and laws and tested hypotheses; true in fact and theory