- a pulmonary infection caused by the protozoan Pneumocystis carinii, occurring as an opportunistic disease in persons with impaired immune systems, as AIDS victims. Abbreviation: PCP
Origin of pneumocystis pneumonia
Also called pneumocys·tis ca·ri·ni·i pneumo·nia [kuh-rahy-nee-ahy] /kəˈraɪ niˌaɪ/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018