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submucosa Syllabification: sub·mu·co·sa
Pronunciation: /ˌsəbmyo͞oˈkōsə/

Definition of submucosa in English:

noun (plural submucosae-sē)

The layer of areolar connective tissue lying beneath a mucous membrane.
Example sentences
  • Between the mucosa and muscle layers lies the submucosa, which is rich in blood vessels and connective tissue.
  • Beneath the mucosa, there is a loose connective tissue layer called the submucosa.
  • Some of the nodules were located in the submucosa beneath areas of mucosal ulceration, but did not show communication with or disruption of the mucosa.


Example sentences
  • Biopsies of the pharynx, performed after radiotherapy, showed infiltration of small lymphocytes, plasmacytes, and neutrophils in the submucosal area.
  • The cause of death was excessive infusion and absorption of normal saline during hysteroscopic ablation of submucosal leiomyoma for menorrhagia.
  • The lesion appeared to be submucosal with an intact submucosa and muscularis propria interface.


Late 19th century: from modern Latin submucosa (membrana), feminine of submucosus 'submucous'.

Definition of submucosa in:
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