Cyanopathy is a term used to describe a medical condition that is characterized by blue discoloration of skin and mucous membranes due to a lack of oxygen in the blood. Other words that can be used as synonyms for Cyanopathy include cyanosis, blueness, lividness, asphyxia, hypoxia, and suffocation. Cyanosis is the most commonly used term for this condition and refers to the bluish discoloration of the skin and mucous membranes due to a lack of oxygen in the blood. Lividness is another term that can be used to describe this condition and refers to a bluish-grey discoloration of the skin due to abnormal blood flow. Asphyxia, hypoxia, and suffocation refer to the deprivation of oxygen to the body.