M3U1C3O1S1A1
10 points
MUCOSA is validvalid
a mucous membrane [n MUCOSAE, MUCOSAS] : MUCOSAL [adj]
(Latin) a mucous membrane [n MUCOSAS or MUCOSAE]
a mucous membrane [n MUCOSAE, MUCOSAS] : MUCOSAL [adj]
(Latin) a mucous membrane [n MUCOSAS or MUCOSAE]