Definition of cyanosis in English:



mass nounMedicine
  • A bluish discoloration of the skin due to poor circulation or inadequate oxygenation of the blood.

    • ‘Infants with coxsackie myocarditis have trouble breathing and sometimes develop cyanosis, a bluish color of the skin, lips, and nails caused by too little oxygen in the blood.’
    • ‘The patient's general appearance should be assessed for evidence of resting dyspnea, cyanosis and cachexia.’
    • ‘The skin and mucous membranes should be inspected for cyanosis, pallor, ecchymoses, telangiectasia, gingivitis, or evidence of bleeding from the oral or nasal mucosa.’
    • ‘There was no clubbing, cyanosis, edema, arthritis, lymphadenopathy, or rash.’
    • ‘Physical examination revealed a dehydrated man with poor skin turgor but no evidence of pedal edema, cyanosis, dubbing, or telangiectasia.’


Mid 19th century: modern Latin, from Greek kuanōsis ‘blueness’, from kuaneos ‘dark blue’.