frenum

[free-nuhm]

fre·num

[free-nuhm]
noun, plural fre·na [-nuh] . Anatomy, Zoology.
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. 2012.
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Frenum is always a great word to know.
So is sinus. Does it mean:
a soft, fatty, vascular tissue in the interior cavities of bones that is a major site of blood cell production
one of the hollow cavities in the skull connecting with the nasal cavities
Collins
World English Dictionary
fraenum or frenum (ˈfriːnəm)
 
n , pl -na
a fold of membrane or skin, such as the fold beneath the tongue, that supports an organ
 
[C18: from Latin: bridle]
 
frenum or frenum (ˈfriːnəm, -nə)
 
n
 
[C18: from Latin: bridle]

frenum (ˈfriːnəm)
 
n , pl -na
a variant spelling (esp US) of fraenum

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

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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