muscularis
/ˌmʌskjʊˈlɑːrɪs/Histology and Anatomy
noun
1The smooth muscle of the wall of the gastrointestinal tract and other tubular or hollow organs; a layer of such muscle; the tunica media of a muscular artery. More fully muscularis externa, muscularis propria.
2= muscularis mucosae rare.
Origin
Late 19th century. From German Muscularis, use as noun of post-classical Latin muscularis muscular, probably after scientific Latin tunica muscularis muscular coat.