Usually a symptom of alkaptonuria or phenol poisoning

• An accumulation of dark pigment in cartilage and other connective tissue

Wiktionary Word definitions in Wiktionary
n. An autosomal-recessive metabolic disorder that causes an excess of homogentisic acid, resulting in adverse pigmentation, calcification, and inflammation of cartilaginous and related tissue throughout the body.

WordNet Word definitions in WordNet
n. an accumulation of dark pigment in cartilage and other connective tissue; usually a symptom of alkaptonuria or phenol poisoning

Wikipedia Word definitions in Wikipedia
Ochronosis is the syndrome caused by the accumulation of homogentisic acid in connective tissues . The phenomenon was first described by Rudolf Virchow in 1865. The condition was named after the yellowish (ocher-like) discoloration of the tissue seen on ...