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lemma1

[lem-uh]
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noun, plural lem·mas, lem·ma·ta [lem-uh-tuh] /ˈlɛm ə tə/.
  1. a subsidiary proposition introduced in proving some other proposition; a helping theorem.
  2. an argument, theme, or subject, especially when indicated in a heading.
  3. a word or phrase that is glossed; headword.
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Origin of lemma1

1560–70; < Latin: theme, title, epigram < Greek lêmma something received, premise, akin to lambánein to take, receive, take for granted

lemma2

[lem-uh]
noun, plural lem·mas. Botany.
  1. a bract in a grass spikelet just below the pistil and stamens.
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Origin of lemma2

1745–55; < Greek lémma shell, husk, akin to lépein to peel
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


British Dictionary definitions for lemmata

lemma1

noun plural -mas or -mata (-mətə)
  1. a subsidiary proposition, proved for use in the proof of another proposition
  2. linguistics a word considered as its citation form together with all the inflected forms. For example, the lemma go consists of go together with goes, going, went, and gone
  3. an argument or theme, esp when used as the subject or title of a composition
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Word Origin

C16 (meaning: proposition), C17 (meaning: title, theme): via Latin from Greek: premise, from lambanein to take (for granted)

lemma2

noun plural -mas or -mata (-mətə)
  1. the outer of two bracts surrounding each floret in a grass spikeletCompare palea
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Word Origin

C19: from Greek: rind, from lepein to peel
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lemmata

lemma

n.

1560s, first in mathematics, from Greek lemma (plural lemmata) "something received or taken; an argument; something taken for granted," from root of lambanein "to take" (see analemma).

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Online Etymology Dictionary, © 2010 Douglas Harper

lemmata in Science

lemma

[lĕmə]
Plural lemmas lemmata (lĕmə-tə)
  1. The outer or lower of the two bracts enclosing one of the flowers within a grass spikelet.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.