ochronosis
/ˌoʊkrəˈnoʊsɪs/
noun
- A medical condition in which the skin and other tissues turn a bluish-black or brownish color, often caused by a buildup of a substance called homogentisic acid.
- The doctor diagnosed the patient with ochronosis after noticing the blue-black discoloration.
- Ochronosis can cause the ears and nose to darken over time.
- People with alkaptonuria often develop ochronosis as they age.