ULCER

n. 1 sore, lesion, abscess, ulceration, canker, chancre, boil, gumboil, eruption, carbuncle, inflammation That ulcer should be treated before it gets any worse 2 cancer, canker, festering spot, blight, scourge, poison, disease, pestilence, curse, bane, plague We must purge this ulcer before it corrupts the entire organization