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Definition of Theory


  1. A doctrine, or scheme of things, which terminates in speculation or contemplation, without a view to practice; hypothesis; speculation.
  2. An exposition of the general or abstract principles of any science; as, the theory of music.
  3. The science, as distinguished from the art; as, the theory and practice of medicine.
  4. The philosophical explanation of phenomena, either physical or moral; as, Lavoisier's theory of combustion; Adam Smith's theory of moral sentiments.
More "Theory" Quotations

Theory Translations

theory in Dutch is theorie
theory in German is Theorie
theory in Italian is gamma
theory in Portuguese is teoria
theory in Swedish is teori