| 释义 | ni·tro·so·coc·cus \ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈkäkəs\ noun
 Usage: capitalized
 Etymology: New Latin, from nitrosus nitrous + -o- + -coccus
 : a genus of large nonmotile spherical bacteria (family Nitrobacteriaceae) comprising a single species (N. nitrosus) that oxidizes ammonia compounds to nitrites in the soil or on suitable media
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