from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A skin disease, sometimes associated with cancer, exhibiting grey or black wart-like growths near the major joints.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a skin disease characterized by dark wartlike patches in the body folds; can be benign or malignant
From New Latin acanth ("spine") + English osis ("diseased condition") + Latin nigricans ("blackish"). (Wiktionary)