frenulum

US:USA pronunciation: respellingUSA pronunciation: respelling(fren′yə ləm)


WordReference Random House Unabridged Dictionary of American English © 2026
fren•u•lum  (fren′yə ləm),USA pronunciation n., pl. -la (-lə).USA pronunciation 
  1. Anatomy, Zoologya small frenum.
  2. Insects[Entomol.]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. 
  • Neo-Latin; see frenum, -ule
  • 1890–95
fren′u•lar, adj. 

'frenulum' also found in these entries (note: many are not synonyms or translations):
tongue-tie - fraenulum - frenate - retinaculum

Forum discussions with the word(s) "frenulum" in the title:


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