primary atypical pneumonia

noun

: any of a group of pneumonias (such as Q fever and psittacosis) caused especially by a virus, mycoplasma, rickettsia, or chlamydia

Word History

First Known Use

circa 1944, in the meaning defined above

Medical Definition

primary atypical pneumonia

noun

: any of a group of pneumonias (as Q fever and psittacosis) caused especially by a virus, mycoplasma, rickettsia, or chlamydia