Medical Dictionary

zygomaticus major

noun

Medical Definition of ZYGOMATICUS MAJOR

:  a slender band of muscle on each side of the face that arises from the zygomatic bone, inserts into the orbicularis oris and skin at the corner of the mouth, and acts to pull the corner of the mouth upward and backward when smiling or laughing

Illustration of ZYGOMATICUS MAJOR

Browse

How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears