(anatomy) The part of the respiratory tract consisting of the nose, oral cavity, pharynx and larynx.

(virology) Any virus in genus Pneumovirus causing respiratory tract infections.

plural of respiratory system

plural of respiratory tract

plural of respiratory pigment

plural of respiratory syncytial virus

The number of breaths taken in a specified time (usually a minute)

(medicine) A professional medical designation recognized in some jurisdictions, denoting an individual who is fully qualified and licensed to evaluate, treat, and care for patients with breathing or other cardiopulmonary disorders.

plural of respiratory practitioner

(medicine) The quality and symptom of a heightened level of carbon dioxide in the blood stream; hypoxia.