亚硝化单胞菌属：假单胞菌目，假单胞亚目，硝化菌科的一属微生物，为不动的椭卵形菌，其氧化氨为亚硝酸盐的速度远快于本科其他属的菌。有两个种：N. europaea和 N. monocella- normovolemic
- Norpace
- Norpramin
- norpseudoephedrine
- Norris' corpuscles
- Northrop
- nortriptyline hydrochloride
- nortropinon
- nosazontology
- noscapine
- nose
- nosegay
- Nosema
- nosematosis
- nosencephalus
- nosepiece
- nosetiology
- nosiheptide
- noso-
- nosochthonography
- nosocomial
- nosogenesis
- nosogenic
- nosogeny
- nosogeography