nasalis

noun
na·​sa·​lis | \ nā-ˈzā-ləs How to pronounce nasalis (audio) , -ˈsā- How to pronounce nasalis (audio) \

Medical Definition of nasalis

: a small muscle on each side of the nose that constricts the nasal aperture by the action of a triangular transverse portion which draws the lateral part of the aperture upward and a quadrangular alar portion which draws it downward

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