A bluish color of the skin and the mucous membranes due to insufficient oxygen in the blood. For example, the lips can develop cynanosis when exposed to extreme cold. Cyanosis can be present at birth, as in a 'blue baby,' an infant with a malformation of the heart that permits into the arterial system blood that is not fully oxygenated.

Blue-colored skin caused by too little oxygen in the blood.

Bluish coloration, especially of the skin and mucous membranes and fingernail beds, caused by abnormally large amounts of reduced hemoglobin in the blood vessels as a result of deficient oxygenation.

A blue coloration in the lips, skin and fingernails as a result of reduced oxygen levels in the blood.

a bluish discoloration of skin, lips, nail beds or mucous membranes due to excessive concentrations of reduced hemoglobin in blood and hence deficient oxygenation of blood. cyanotic (adj.).

"blue disease," the "blue jaundice" of the ancients, 1820, Medical Latin, from Greek kyanosis, from kyanos "dark blue color" (see cyan) + -osis.

A bluish tinge or discolouration of one's skin or complexion due to lack of oxygen. Can be caused by many factors e.g diet or smoking.

A bluish discolouration, applied especially to such discolouration of skin and mucous membranes due to excessive concentration of reduced haemoglobin in the blood.

(si´ua-no´sis) A bluish discoloration of the skin or mucous membranes due to excessive concentration of deoxyhemoglobin; indicates inadequate oxygen concentration in the blood. cystic duct

bluish skin (pop)

Blue colored skin caused by too little oxygen in the blood.

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

A condition in which skin turns blue due to a lack of oxygen in the blood, often because of heart failure or lung disease.

dark skin from lack of oxygenated blood.

Blue colour to the skin, resulting from congestion in the venous circulation of the blood

Reduced level of oxygen in the blood that makes the skin, lips and nails appear bluish.

Blue-colored skin caused by too little oxygen in the blood.

Dark skin color; blueness of skin caused by lack of oxygen in blood.

 A blue or gray discoloration of the skin caused by insufficient oxygen. 

The pathological condition where there is an excessive concentration of reduced haemoglobin in the blood. This results in blue appearance of the skin, especially on the face and extremities, indicatin [..]

A bluish or purplish discoloration of the Skin and Mucous Membranes due to an increase in the amount of deoxygenated Hemoglobin in the Blood or a structural defect in the Hemoglobin molecule.

A bluish or purplish discoloration of the skin and mucous membranes due to an increase in the amount of deoxygenated hemoglobin in the blood or a structural defect in the hemoglobin molecule.

Blue-colored skin caused by too little oxygen in the blood.

blue skin color caused by low levels of oxygen in the blood

A bluish color of skin, fingernails, and mucous membranes that indicates low level of oxygen in the blood.

insufficient oxygen in the blood.

Bluish discoloration of the skin and mucous membranes from lack of oxygen. The cause can be hemoglobin without oxygen in the blood or a defect in the hemoglobin molecule, as in methemoglobin. - cyanotic, adj.