noun, plural gum·mas, gum·ma·ta [guhm-uh-tuh] /ˈgʌm ə tə/. Pathology.
Origin of gumma
Examples from the Web for gummatous
It is even possible to have the roof fall out of the mouth from gummatous changes and the Wassermann test yet be negative.
It has a peculiar effect on gummatous tissue, causing it to melt away, so to speak, and greatly hastening the healing process.
Gummatous disease in the wall of the orbit may cause displacement of the eye and paralysis of the ocular muscles.Manual of Surgery|Alexis Thomson and Alexander Miles
Does the gummatous syphiloderm invariably appear as a rounded well-defined tumor?Essentials of Diseases of the Skin|Henry Weightman Stelwagon
Gummatous lesions occur on the lips, and are liable to be mistaken for epithelioma.