quadratus labii superioris

noun
quadratus la·​bii su·​pe·​ri·​or·​is | \ -ˈlā-bē-ˌī-su̇-ˌpir-ē-ˈȯr-əs How to pronounce quadratus labii superioris (audio) \

Medical Definition of quadratus labii superioris