/ Thesaurus / B Synonyms of black disease Find synonyms for: Noun1. black disease, sheep rot, liver rot, distomatosis, animal diseaseusage: a disease of the liver (especially in sheep and cattle) caused by liver flukes and their by-productsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language