labial commissure (of mouth)

la·bi·al com·mis·sure (of mouth)

[TA] junction of upper and lower lips lateral to the angle of the mouth.
See also: angle of mouth.
Synonym(s): commissure of lips (of mouth)

la·bi·al com·mis·sure (of mouth)

(lābē-ăl komi-shŭr mowth) [TA] Junction of upper and lower lips lateral to mouth angle.
Synonym(s): commissure of lips (of mouth).