Meaning of pneumocystis pneumonia

pneu•mo•cys'tis pneumo'nia

Pronunciation: (n"mu-sis'tis, ny"-), [key]
— Pathol. Pathol.
  1. a pulmonary infection caused by the protozoan Pneumocystis carinii, occurring as an opportunistic disease in persons with impaired immune systems, as AIDS victims. Abbr.: PCP&hasp; Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.