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or fraenum

[free-nuh m] /ˈfri nəm/
noun, plural frena
[free-nuh] /ˈfri nə/ (Show IPA).
Anatomy, Zoology.
a fold of membrane that checks or restrains the motion of a part, as the fold on the underside of the tongue.
Origin of frenum
< New Latin; Latin frēnum bridle Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for frena


noun (pl) -na (-nə)
a variant spelling (esp US) of fraenum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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frena in Medicine

frenum fre·num (frē'nəm)
n. pl. fre·nums or fre·na (-nə)

  1. A membranous fold of skin or mucous membrane that supports or restricts the movement of a part or organ, such as the small band of tissue connecting the tongue to the floor of the mouth.

  2. An anatomical structure resembling such a fold.

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