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[fren-yuh-luh m] /ˈfrɛn yə ləm/
noun, plural frenula
[fren-yuh-luh] /ˈfrɛn yə lə/ (Show IPA)
Anatomy, Zoology. a small frenum.
Entomology. a strong spine or group of bristles on the hind wing of many butterflies and moths, projecting beneath the forewing and serving to hold the two wings together in flight.
Also, fraenulum.
1890-95; < New Latin; see frenum, -ule
Related forms
frenular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for frenula


noun (pl) -la (-lə)
a strong bristle or group of bristles on the hind wing of some moths and other insects, by which the forewing and hind wing are united during flight
a small fraenum
Word Origin
C18: New Latin, diminutive of Latin frēnum bridle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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frenula in Medicine

frenulum fren·u·lum (frěn'yə-ləm)
n. pl. fren·u·la (-lə)
A small frenum or band of fibrous material.

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