ETYM New Lat. Related to Cyanic.
Bluish discoloration of the skin or mucous membranes, usually around the mouth, due to diminished uptake of oxygen. It is most often seen in diseases of the heart or lungs.
A bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning).
Heart condition or disease causing blueness of surface of body; blue disease.