labia labellum • labial · · · Info · Definitions · Characters · · labia · · Text Latin · · Script 5 · · Length Definitions · · · (noun) a liplike structure that bounds a bodily orifice (especially any of the four labiate folds of a woman's vulva). Synonyms: labium. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 i latin small letter i U+0069 l latin small letter l U+006C