#cyanosis  a bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning)
  supertype:  #symptom  (medical) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
  subtype:  #acrocyanosis  cyanosis of the extremities; can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion
  part of:  #carbon_monoxide_poisoning  a toxic condition that results from inhaling and absorbing carbon monoxide gas; "carbon monoxide combines with hemoglobin and displaces oxygen in the blood"

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