Harelip n. : A lip, commonly the upper one, having a fissure of perpendicular division like that of a hare.

Example:


Taxonomy
cleft, cleft palate, cleft lip, surgery, Cleft lip and palate, lip, palate, craniofacial team, gap, treatment, adolescents, 2007-07-01, speech, scar, soft palate, Psychosocial, peers, roof of the mouth.

Defination from the web:
... Cleft lip (cheiloschisis) and cleft palate (palatoschisis) (colloquially known as harelip), which can also occur together as cleft lip and palate, ...