WordReference Random House Unabridged Dictionary of American English © 2026
sub•mu•co•sa
(sub′myo̅o̅ kō′sə, -zə),USA pronunciation n. [Anat.]
sub′mu•co′sal, adj.
- Anatomythe layer of connective tissue located beneath the mucous membrane.
- 1880–85; Neo-Latin; see sub-, mucosa