Medical Dictionary
orbicularis oris
noun \-ˈōr-əs\
plural orbiculares oris
Medical Definition of ORBICULARIS ORIS
: a muscle made up of several layers of fibers passing in different directions that encircles the mouth and controls most movements of the lips (as compressing, closing, or pursing movements)
Illustration of ORBICULARIS ORIS
Seen & Heard
What made you want to look up orbicularis oris? Please tell us where you read or heard it (including the quote, if possible).