theoryとは 意味・読み方・使い方
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意味・対訳 (実際に対して)理論、学理、理屈、空論、仮説、学説、説、論、意見、持論
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研究社 新英和中辞典での「theory」の意味 |
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「theory」を含む例文一覧
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日本語WordNet(英和)での「theory」の意味 |
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theory
Wiktionary英語版での「theory」の意味 |
theory
語源
From Middle French théorie, from Late Latin theōria, from Ancient Greek θεωρία (theōría, “contemplation, speculation, a looking at, things looked at”), from θεωρέω (theōréō, “I look at, view, consider, examine”), from θεωρός (theōrós, “spectator”), from θέα (théa, “view”) + ὁράω (horáō, “I see, look”) [i. e. θέαν ὁράω (théan horáō, “see, look at a view; survey + genitive”)].
発音
- (Received 発音, General Australian) IPA(key): /ˈθɪə.ɹi/, /ˈθiː.ə.ɹi/, /ˈθɪɹ.i/
- (General American) IPA(key): /ˈθɪɚ.i/, /ˈθi.ə.ɹi/
名詞
theory (countable かつ uncountable, 複数形 theories)
- A description of an event or system that is considered to be accurate.
- (sciences) A coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed; a hypothesis confirmed by observation, experiment etc. [from 17th c.]
- 1843, John Stuart Mill, ""A System of Logic, Ratiocinative and Inductive, ..., Bk V, Ch 7:
- In its most proper acceptation, theory means the completed result of philosophical induction from experience.
- 1990, Tony Bennett, Outside Literature, page 139:
- Does this mean, then, that there can be no such thing as a theory of literature?
- 2002, Duncan Steel, The Guardian, 23 May 2002:
- It was only when Einstein's theory of relativity was published in 1915 that physicists could show that Mercury's "anomaly" was actually because Newton's gravitational theory was incomplete.
- 2003, Bill Bryson, A Short History of Nearly Everything, BCA, p. 118:
- The world would need additional decades [...] before the Big Bang would begin to move from interesting idea to established theory.
- 2009, Richard Dawkins, The Greatest Show On Earth: The Evidence for Evolution, Bantam, p. 10:
- Scientists and creationists are understanding the word "theory" in two very different senses. Evolution is a theory in the same sense as the heliocentric theory. In neither case should the word "only" be used, as in "only a theory".
- 2012 January 1, Michael Riordan, “Tackling Infinity”, in American Scientist[1], volume 100, number 1, page 86:
- Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.
- 1843, John Stuart Mill, ""A System of Logic, Ratiocinative and Inductive, ..., Bk V, Ch 7:
- (uncountable) The underlying principles or methods of a given technical skill, art etc., as opposed to its practice. [from 17th c.]
- 1998, Elizabeth Souritz, The Great History of Russian Ballet:
- Lopukhov wrote a number of books and articles on ballet theory, as well as his memoirs.
- (mathematics) A field of study attempting to exhaustively describe a particular class of constructs. [from 18th c.]
- Knot theory classifies the mappings of a circle into 3-space.
- A hypothesis or conjecture. [from 18th c.]
- 2003, Sean Coughlan, The Guardian, 21 Jun 2003:
- The theory is that by stripping costs to the bone, they are able to offer ludicrously low fares.
- (countable, logic) A set of axioms together with all statements derivable from them; or, a set of statements which are deductively closed. Equivalently, a formal language plus a set of axioms (from which can then be derived theorems). The statements may be required to all be bound (i.e., to have no free variables).
- A theory is consistent if it has a model.
- (obsolete) Mental conception; reflection, consideration. [16th–18th c.]
使用する際の注意点
In scientific discourse, the sense “unproven conjecture” is discouraged (with hypothesis または conjecture preferred), due to unintentional ambiguity and intentional equivocation with the sense “well-developed statement or structure”.
Holonyms
- (in logic): formal system
派生語
- acoustic theory
- algorithmic information theory
- antenna theory
- atomic theory
- catastrophe theory
- category theory
- cell theory
- chaos theory
- circuit theory
- complexity theory
- computation theory
- control theory
- critical theory
- decision theory
- domino theory
- extreme value theory
- game theory
- giant impact theory
- graph theory
- group theory
- information theory
- in theory
- kinetic theory of gases
- knot theory
- literary theory
- M-theory
- music theory
- number theory
- opponent-process theory
- phlogiston theory
- probability theory
- proof theory
- quantum field theory
- rational choice theory
- set theory
- signal theory
- social theory
- spectral theory
- systems theory
- theoryhead
- theory of gravity
- theory of relativity
- theory of truth
- Theory X
- Theory Y
- type theory
- value theory
- virtue theory
関連する語
参照
- theory at OneLook Dictionary Search
- theory in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018.
- "theory" in Raymond Williams, Keywords (revised), 1983, Fontana Press, page 316.
- theory in The Century Dictionary, New York, N.Y.: The Century Co., 1911
アナグラム
- Yother, thyreo-
ウィキペディア英語版での「theory」の意味 |
Theory
出典:『Wikipedia』 (2011/06/08 21:46 UTC 版)
Weblio例文辞書での「theory」に類似した例文 |
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theory
a theory
仮説.
理論的には
a proven theory
a good theory
smash a theory
construct a theory
a strange theory
a foolish theory
a profound theory
an old theory
a consistent theory
a theorist
a beautiful theory
construct a theory about
「theory」を含む例文一覧
該当件数 : 6190件
the Copernican theory [system]発音を聞く 例文帳に追加
地動説. - 研究社 新英和中辞典
a geocentric theory発音を聞く 例文帳に追加
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the Ptolemaic system [theory]発音を聞く 例文帳に追加
天動説. - 研究社 新英和中辞典
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※この記事は「北里大学医療衛生学部 医療情報学研究室」ホームページ内の「医学用語集」(2001.06.10. 改訂)の情報を転載しております。 | |
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Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wiktionary英語版」の記事は、Wiktionaryのtheory (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
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Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのTheory (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
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