pl. -·lums or -·la
- a small frenum
- Zool. a stiff bristle or group of bristles extending from the hind wing of some moths and interlocking with a structure on the front wing, linking the wings together in flight
Origin of frenulumModL, diminutive of frenum: see frenum
- Anatomy A small frenum.
- Entomology A bristly structure on the hind wings of certain moths and butterflies that holds the forewings and hind wings together during flight.
Origin of frenulumNew Latin fr&emacron;nulum, diminutive of Latin fr&emacron;num, bridle; see frenum.
(plural frenula or frenulums)
From Latin frēnulum, diminutive of frēnum.