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harelip,congenital abnormality in which there is a cleft or split in the upper lip. There may be a single opening in the middle portion of the lip or an opening on each side. The condition frequently occurs along with a cleft palatecleft palate,
incomplete fusion of bones of the palate. The cleft may be confined to the soft palate at the back of the mouth; it may include the hard palate, or roof of the mouth; or it may extend through the gum and lip, producing a gap in the teeth and a cleft lip, which is
..... Click the link for more information. , an opening in the roof of the mouth. Harelip is usually corrected by plastic surgery soon after birth.
A congenital defect, sometimes hereditary, marked by an abnormal cleft between the upper lip and the base of the nose. Also known as cleft lip.
a congenital cleft or fissure in the midline of the upper lip, resembling the cleft upper lip of a hare, often occurring with cleft palate