procheilon

tu·ber·cle of up·per lip

[TA]

the slight projection on the free edge of the center of the upper lip at the lower extent of the philtrum.

Synonym(s): tuberculum labii superioris [TA], labial tubercle, procheilon, prochilon

procheilon

(prō-kī′lŏn) [Gr. pro, before, + cheilon, lip]

A prominence in the central portion of the upper lip.