[ men-tuh m ]
/ ˈmɛn təm /

noun, plural men·ta [men-tuh] /ˈmɛn tə/.

Entomology. the medial plate of the labium in insects.
Botany. a chinlike protuberance formed by the sepals and the base of the column in some orchids.

Origin of mentum

1685–95; < New Latin, Latin mentum chin, akin to mouth Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mentum

Medicine definitions for mentum

[ mĕntəm ]

n. pl. men•ta (-tə)

The chin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.