Dutch Etymology Compound of bloed (“blood”) + zweer (“ulcer, boil”). Pronunciation IPA(key): /ˈblut.sʋeːr/ Audio:(file) Hyphenation: bloed‧zweer Noun bloedzweer f (plural bloedzweren, diminutive bloedzweertje n) carbuncle (type of purulent ulcer) Synonyms: karbonkel, steenpuist Wikiwand - on Seamless Wikipedia browsing. On steroids.