Fraenum
Pronunciation : Fr?"num, or; Fre"num, n.; pl. E. Fr?nums
Part of Speech : L.
Etymology : [L., a bridle.] (Anat.)
Definition : Defn: A connecting fold of membrane serving to support or restrain any part; as, the fr?num of the tongue.
Fr?na.
Source : Webster's Unabridged Dictionary, 1913