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

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May 23, 2015
debouch Hear it
to emerge or cause to emerge
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