nasalis

na·sa·lis

noun \nā-ˈzā-ləs, -ˈsā-\

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

Illustration of NASALIS