noun, plural menta [men-tuh] .
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.

1685–95; < Neo-Latin, Latin mentum chin, akin to mouth Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

mentum men·tum (měn'təm)
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.
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Example sentences
The mo-mentum of the frame thrust the employee backward off the second level.
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