Definitions

1. adjective

relating to or situated beneath a mucous membrane

“The submucous tissue surrounding the lungs played a vital role in the patient’s recovery.”

2. noun

a layer or mass of cells beneath a mucous membrane

“The submucous layer of the small intestine was affected by the disease.”

3. noun

a layer of tissue beneath a mucous membrane

“The submucous layer of the nasal passages was swollen due to allergies.”