frenulum

[fren-yuh-luh m]
noun, plural fren·u·la [fren-yuh-luh] /ˈfrɛn yə lə/.
  1. Anatomy, Zoology. a small frenum.
  2. 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.

Origin of frenulum

From New Latin, dating back to 1890–95; see origin at frenum, -ule
Related formsfren·u·lar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of frenulum


British Dictionary definitions for frenulum

frenulum

noun plural -la (-lə)
  1. 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
  2. a small fraenum

Word Origin for frenulum

C18: New Latin, diminutive of Latin frēnum bridle
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

frenulum in Medicine

frenulum

[frĕnyə-ləm]
n. pl. fren•u•la (-lə)
  1. 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.