名詞 gumma:

1. a small rubbery granuloma that is characteristic of an advanced stage of syphilis

gum.ma

n.（名詞）
【復數】 gum.mas 或 gum.ma.ta [gôm.…-t…]
A small, rubbery granuloma that has a necrotic center and is enclosed by an inflamed, fibrous capsule. It is characteristic of an advanced stage of syphilis.
梅毒瘤：一種小的橡膠肉牙瘤，中心壞死，周圍包裹著一層發(fā)炎的纖維狀外囊。為梅毒的后期癥狀

來源：
New Latin
現代拉丁語
from Late Latin [gum] * see gum
源自 后期拉丁語 [樹膠] *參見 gum

【引伸】
gum.matous
adj.（形容詞）