noun.
A persistent blue or cyanotic discoloration of the digits, most commonly occurring in the hands although also occurring in the face and feet as well.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion
Word Usage
"Signs and Symptoms cyanosis - central vs acrocyanosis"