acrocyanosis

n. condition which results in blueness of the limbs (Pathology)

Acrocyanosis refer to 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. For the purpose of discussion, it may be further broken into:Acrocyanosis (benign) - The more common condition that requires little, if any, medical intervention.Acrocyanosis (not benign) - A sign that may elude to a more serious medical problem.
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Acrocyanosis is a decrease in the amount of oxygen delivered to the extremities. [more]Acrocyanosis - Community and Resources

Noun
1. cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion
(synonym) Raynaud's sign
(hypernym) cyanosis

noun
blue colour of the extremities (fingers, toes, ears and nose) due to bad circulation