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frenum

[free-nuh m] /ˈfri nəm/
noun, plural frena
[free-nuh] /ˈfri nə/ (Show IPA).
Anatomy, Zoology
1.
a fold of membrane that checks or restrains the motion of a part, as the fold on the underside of the tongue.
Also, fraenum.
Origin
< Neo-Latin; Latin frēnum bridle
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for frenum
  • Individuals have a broad frenum on the upper lip and a small pointed head.
  • The premaxillary frenum is absent or poorly developed.
British Dictionary definitions for frenum

fraenum

/ˈfriːnəm/
noun (pl) -na (-nə)
1.
a fold of membrane or skin, such as the fold beneath the tongue, that supports an organ
Word Origin
C18: from Latin: bridle

frenum

/ˈfriːnəm/
noun (pl) -na (-nə)
1.
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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frenum 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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