Congenital absence of the lips. ... Origin: G. A-priv. + cheilos, lip ... (05 Mar 2000) ... 
(ә-ki´le-ә) a developmental anomaly consisting of absence of the lips. adj., achei´lous., adj.
Type: Term Pronunciation: ă-kī′lē-ă Definitions: 1. Congenital absence of the lips.
A birth defect in which the baby is born with one or both of the lips missing.
acheilia A condition present at birth in which there is an absence of one or both lips.