Frenum

(fre'-num). A ligament, fold of integument, or other part, that checks or limits the movements of any organ. F. dent is, the socket of a tooth. F. labiorum, the fourchet or lower commi ure of the labia pudendi. F. linguae, the bridle of the tongue. F., Macdowel's, the acce ory fibers strengthening anteriorly the inter muscular septum of the deep fascia of the arm attached to the great pectoral tendon. F. of Penis, the fold on the lower surface of the glans penis connecting it with the prepuce.