What do a.m. and p.m. stand for?


[men-tuh m] /ˈmɛn təm/
noun, plural menta
[men-tuh] /ˈmɛn tə/ (Show IPA)
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 Dictionary, © Random House, Inc. 2015.
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Examples from the web for mentum
  • The mo-mentum of the frame thrust the employee backward off the second level.
mentum in Medicine

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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