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  • Definition
    • theory :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
      • theories can incorporate facts and laws and tested hypotheses|true in fact and theory

    • 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
      • 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

    • theory :a belief that can guide behavior
      • the architect has a theory that more is less|they killed him on the theory that dead men tell no tales

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  • Derivative