cyanosis

/ˈsaɪəˌnoʊsəs/

Definitions of cyanosis

1. noun

   a bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning)
   types:

   Raynaud's sign, acrocyanosis

   cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion

   type of:

   symptom

   (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease