breathing

Adjective

• passing or able to pass air in and out of the lungs normally; sometimes used in combination
  • the boy was disappointed to find only skeletons instead of living breathing dinosaurs
    
  • the heavy-breathing person on the telephone
    

Noun

• the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation

Related words

• Synonyms: 
  eupneic , eupnoeic , external respiration , respiration , ventilation
• Antonyms: 
  breathless , dyspneic , dyspnoeic , dyspneal , dyspnoeal