ulcusWiktionary 原文/ˈʌlkəs/词源链拉丁语Latin约前 75–公元 3 世纪ulcus‘sore’↓ 借入英语Englishulcus词源说明From Latin ulcus (“sore”). Doublet of ulcer.释义名词noun1(palynology) A rounded, pore-like aperture at either pole of a pollen grain.2(pathology) Synonym of ulcer.同族词派生词 3