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6 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 the·o·ry /ˈθiəri, ˈθɪ(ə)ri/
 原理,理論;C學說;C意見,推測

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 the·o·ry /ˈθɪərɪ, ˈθɪ(ə)rɪ/ 名詞
 學說,理論,原理,定理

From: Taiwan MOE computer dictionary

 theory
 理論

From: Network Terminology

 theory
 理論

From: Webster's Revised Unabridged Dictionary (1913)

 The·o·ry n.; pl. Theories
 1. A doctrine, or scheme of things, which terminates in speculation or contemplation, without a view to practice; hypothesis; speculation.
 Note:“This word is employed by English writers in a very loose and improper sense. It is with them usually convertible into hypothesis, and hypothesis is commonly used as another term for conjecture. The terms theory and theoretical are properly used in opposition to the terms practice and practical. In this sense, they were exclusively employed by the ancients; and in this sense, they are almost exclusively employed by the Continental philosophers.”
 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.
 Atomic theory, Binary theory, etc. See under Atomic, Binary, etc.
 Syn: -- Hypothesis, speculation.
 Usage: -- Theory, Hypothesis. A theory is a scheme of the relations subsisting between the parts of a systematic whole; an hypothesis is a tentative conjecture respecting a cause of phenomena.
 

From: WordNet (r) 2.0

 theory
      n 1: 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"
      2: 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 of alkalis that later was accepted
         in chemical practices" [syn: hypothesis, possibility]
      3: 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"