The Open Dictionary

modiolus

noun

UK/məˈdaɪ.ə.ləs/
US/məˈdaɪ.ə.ləs/

Definitions of modiolus noun

  1. Countableanatomy

    The point on each side of the mouth where the facial muscles intersect.

    • The modiolus becomes more prominent when smiling.

    • Subtle changes in facial expressions are influenced by the muscles of the modiolus.

    • The modiolus is crucial for expressing emotions.