lemma

Short definition from Wiktionary

Noun

1. 1
   A proposition proved or accepted for immediate use in the proof of some other proposition.
2. 2
   A proposition proved or accepted for immediate use in the proof of some other proposition: A proposition originally used for such a purpose, but having later acquired a greater, independent, importance; a fundamental (often pithy) and widely-used result.
3. 3
   The canonical form of an inflected word; i.e., the form usually found as the headword in a dictionary, such as the nominative singular of a noun, the bare infinitive of a verb, etc.
4. 4
   The theoretical abstract conceptual form of a word, representing a specific meaning, before the creation of a specific phonological form as the sounds of a lexeme, which may find representation in a specific written form as a dictionary or lexicographic word.
5. 5
   The outer shell of a fruit or similar body.
6. 6
   One of the specialized bracts around the floret in grasses.

Proper noun

1. 1
   A female given name.