Last Updated：2025/12/06
(anatomy) 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.
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zygomaticus major
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Source Word
zygomaticus major
IPA(Pronunciation)
Noun
Japanese Meaning
顔の両側に位置する細長い筋肉。頬骨から起始し、口輪筋や口角の皮膚に停止し、笑顔や笑いの際に口角を上げ、後ろに引く役割を果たす。
（ plural ）
