frenulum

(fren′yŭ-lŭm )

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(fren′yŭ-lă)
pl. frenula [L. frenulum, a little bridle (frenum)]

1. A small frenum.
SYN: SEE: vinculum
2. A small fold of white matter on the upper surface of the anterior medullary velum extending to the corpora quadrigemina of the brain.

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