mentum mentorship • Mentzelia · · · Info · Definitions · Synonyms · Characters · · mentum · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a projection like a chin formed by the sepals and base of the column in some orchids. · · Noun Definition 1 (noun) the protruding part of the lower jaw. Synonyms: chin. · · Noun Definition 2 (noun) a projection below the mouth of certain mollusks that resembles a chin. · · Noun Definition 3 Synonyms · · · chin · · Synonym 1 Characters · · e latin small letter e U+0065 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074 u latin small letter u U+0075