[gum.ma] n, pl gummas also gum.ma.ta [NL gummat-, gumma, fr. LL, gum, alter. of L gummi gum] (ca. 1722): a tumor of gummy or rubbery consistency that is characteristic of the tertiary stage of syphilis -- gum.ma.tous adj
GUMMA
Meaning of GUMMA in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012