Nitrosomonas

noun
Ni·​tro·​som·​o·​nas | \ˌnī-(ˌ)trō-ˈsä-mə-nəs, -ˌnas\

Definition of Nitrosomonas 

: a genus of spherical to rod-shaped, chemoautotrophic bacteria (family Nitrosomonadaceae) that are found in soil and water and obtain energy for growth by oxidizing ammonia to nitrites

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History and Etymology for Nitrosomonas

New Latin, from nitrosus + -o- + -monas

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