levator labii superioris
noun
levator la·bii su·pe·ri·or·is
-ˈlā-bē-ˌī-su̇-ˌpir-ē-ˈȯr-əs 
: a facial muscle arising from the lower margin of the orbit and inserting into the muscular substance of the upper lip which it elevates
called also quadratus labii superioris
Cite this Entry
“Levator labii superioris.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/levator%20labii%20superioris. Accessed 4 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share