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lemma 音标拼音: [l'ɛmə] n. 补助定理,补题,引理 补助定理,补题,引理 lemma 引理 lemma 系 引理 lemma n 1: a subsidiary proposition that is assumed to be true in order to prove another proposition 2: the lower and stouter of the two glumes immediately enclosing the floret in most Gramineae [synonym: {lemma}, {flowering glume}] 3: the heading that indicates the subject of an annotation or a literary composition or a dictionary entry Lemma \Lem"ma\ (l[e^]m"m[.a]), n.; pl. L. {Lemmata} (-m[.a]*t[.a]), E. {Lemmas} (-m[.a]z). [L. lemma, Gr. lh^mma anything received, an assumption or premise taken for granted, fr. lamba`nein to take, assume. Cf. {Syllable}.] 1. (Math., Logic) A preliminary or auxiliary proposition demonstrated or accepted for immediate use in the demonstration of some other proposition, as in mathematics or logic. [1913 Webster] 2. A word that is included in a glossary or list of headwords; a headword. [PJC] main entry word \main entry word\ n. The form of a word that heads a lexical entry and is alphabetized in a dictionary; also called {entry word}, {headword}, and {lemma}. Syn: citation form, entry word, headword, lemma. [WordNet 1.5] Note: In different languages, different wordforms, such as cases for verbs, may be taken as the main entry word. In English dictionaries, it is the infinitive form, but in latin dictionaries it is usually the first person singular present. [PJC] |
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