(dɪˈprɛsə leybaɪ ɪnˈfɪərɪɒrɪs)
noun
Facial muscle that depresses the lower lip.
« Back to Glossary Index
(dɪˈprɛsə leybaɪ ɪnˈfɪərɪɒrɪs)
noun
Facial muscle that depresses the lower lip.