English

Definition of frenulum noun from the Oxford Advanced Learner's Dictionary

 

frenulum

 noun
noun
BrE BrE//ˈfrenjələm//
 
, also BrE//ˈfriːnjələm//
 
; NAmE NAmE//ˈfrenjələm//
 
(British English also fraenulum
BrE BrE//ˈfriːnjələm//
 
)
(anatomy)
 
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a small fold of skin that prevents an organ from moving too much, for example the fold of skin under the tongue Word Origin early 18th cent.: modern Latin, diminutive of Latin frenum ‘bridle’.
See the Oxford Advanced American Dictionary entry: frenulum