/ Thesaurus / K Synonyms of keratosis nigricans Find synonyms for: Noun1. acanthosis nigricans, keratosis nigricans, skin disease, disease of the skin, skin disorderusage: a skin disease characterized by dark wartlike patches in the body folds; can be benign or malignantWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language