Hypertext Webster Gateway: "Lemma"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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}.]
A preliminary or auxiliary proposition demonstrated or
accepted for immediate use in the demonstration of some other
proposition, as in mathematics or logic.
From WordNet (r) 1.7 (wn)
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 [syn: {flowering
glume}]
3: the head of an annotation or gloss
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