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1. the upper or lower fleshy margin of the mouth.
2. any liplike part; called also labium.
cleft lip see cleft lip and cleft palate.
double lip redundancy of the submucous tissue and mucous membrane of the lip on either side of the median line.
glenoid lip a ring of fibrocartilage joined to the rim of the glenoid cavity.
Hapsburg lip a thick, overdeveloped lower lip that often accompanies Hapsburg jaw.
congenital or acquired excess tissue on the inner mucosal aspect of the lip; may be a manifestation of Ascher syndrome.
A redundant fold of mucous membrane in the mouth on either side of the midline of the lip.
See also: lip
dou·ble lip(dŭbĕl lip)
Redundant congenital or acquired fold of tissue on the mucosal surface of the upper lip.