gumma
noun
gum·ma ˈgə-mə 
plural gummas also gummata ˈgə-mə-tə
: a tumor of gummy or rubbery consistency that is characteristic of the tertiary stage of syphilis
gummatous
ˈgə-mə-təs
adjective 
Word History
Etymology
New Latin gummat-, gumma, from Late Latin, gum, alteration of Latin gummi gum
First Known Use
circa 1722, in the meaning defined above
Medical Definition
gumma
noun
gum·ma ˈgəm-ə
plural gummas also gummata ˈgəm-ət-ə
: a tumor of gummy or rubbery consistency that is characteristic of the tertiary stage of syphilis