from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A subsidiary proposition assumed to be valid and used to demonstrate a principal proposition.
- n. A theme, argument, or subject indicated in a title.
- n. A word or phrase treated in a glossary or similar listing.
- n. The outer or lower of the two bracts that enclose the flower in a grass spikelet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A proposition proved or accepted for immediate use in the proof of some other proposition.
- n. The canonical form of an inflected word.
- n. A lexeme; all the inflected forms of a term.
- n. One of the specialized bracts around the floret in grasses.
from the GNU version of the Collaborative International Dictionary of English
- n. A preliminary or auxiliary proposition demonstrated or accepted for immediate use in the demonstration of some other proposition, as in mathematics or logic.
- n. A word that is included in a glossary or list of headwords; a headword.
from The Century Dictionary and Cyclopedia
- n. In logic:
- n. In the Stoical logic
- n. The major premise of a hypothetical syllogism, or modus ponens: thus, in the reasoning, “If it is day, it is light; but it is day: hence, it is light,” the first premise was called the lemma.
- n. A premise in general.
- n. A Megaric sophism depending on the question whether a man who says “I am lying” is truly lying or not.
- n. In mathematics, a proposition upon which it is necessary to arrest the attention for the sake of proving an ulterior one, but which interrupts the regular series of theorems; also, a premise drawn from another branch of mathematics than that under consideration.
- n. A theme; a thesis; the subject of an epigram, or of a musical composition, etc.
- n. In embryology, the primary or outer layer of the germinal vesicle. Pascoe.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the lower and stouter of the two glumes immediately enclosing the floret in most Gramineae
- n. a subsidiary proposition that is assumed to be true in order to prove another proposition
- n. the heading that indicates the subject of an annotation or a literary composition or a dictionary entry
Latin lēmma, from Greek, from lambanein, to take.
Greek, husk, from lepein, to peel.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek λῆμμα (lēmma, "premise, assumption"), from λαμβάνω (lambanō, "I take"). (Wiktionary)