from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A severe lung infection caused by the parasitic protozoan Pneumocystis carinii and affecting primarily individuals with an immunodeficiency disease, such as AIDS. Also called pneumocystis pneumonia.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An infection of the lungs by the parasitic protozoan Pneumocystis carinii
From New Latin Pneumocystis, genus name : pneumo- + New Latin cystis, cyst; see cyst.(American Heritage® Dictionary of the English Language, Fourth Edition)