A spore-forming parasitic protozoan that chiefly affects insects.
- Genus Nosema, phylum Microspora, kingdom Protista: several species, in particular N. apis, which causes infectious dysentery (nosema disease) in honeybees
More example sentences
- A midgut infected with nosema is off white and a little swollen and is less segmented in appearance.
Definition of nosema in:
- The US English dictionary