n. pl. fren·u·la (-lə)
1. Anatomy A small frenum.
2. Entomology A bristly structure on the hind wings of certain moths and butterflies that holds the forewings and hind wings together during flight.
[New Latin frēnulum, diminutive of Latin frēnum, bridle; see FRENUM.]
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Indo-European & Semitic Roots Appendices
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