frenulum

(redirected from Fraenulum)
Also found in: Dictionary, Medical, Wikipedia.

frenulum

[′fren·yə·ləm]
(anatomy)
A small fold of integument or mucous membrane.
A small ridge on the upper part of the anterior medullary velum.
(invertebrate zoology)
A spine on most moths that projects from the hindwings and is held to the forewings by a clasp, thus coupling the wings together.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.