/lek"si kon', -keuhn/ , n. , pl. lexica /lek"si keuh/ , lexicons .
1. a wordbook or dictionary, esp. of Greek, Latin, or Hebrew.
2. the vocabulary of a particular language, field, social class, person, etc.
3. inventory or record: unparalleled in the lexicon of human relations.
4. Ling.
a. the total inventory of morphemes in a given language.
b. the inventory of base morphemes plus their combinations with derivational morphemes.
[ 1595-1605; lexikón, n. use of neut. of lexikós of words, equiv. to léx ( is ) speech, word (see LEXIS) + -ikos -IC ]
Syn. 1. glossary, thesaurus, gloss, concordance.