Medical Dictionary
Pneumonyssus
noun Pneu·mo·nys·sus \ˌn(y)ü-mə-ˈnis-əs\
Medical Definition of PNEUMONYSSUS
: a genus of mites (family Halarachnidae) that live in the air passages of mammals and include one (P. caninum) found in dogs and another (P. simicola) found in monkeys
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