| 释义 | ni·tro·som·o·nas \ˌnī.(ˌ)trōˈsämənəs, -ˌnas\ noun
 Usage: capitalized
 Etymology: New Latin, from nitrosus + -o- + -monas
 : a genus of ellipsoidal autotrophic soil bacteria (family Nitrobacteriaceae) that obtain energy for growth by oxidizing ammonia to nitrites and grow poorly on organic matter
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