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nitrobacteria

[nahy-troh-bak-teer-ee-uh]
plural noun, singular ni·tro·bac·te·ri·um [nahy-troh-bak-teer-ee-uh m] /ˌnaɪ troʊ bækˈtɪər i əm/.
  1. certain bacteria in the soil involved in nitrifying processes.
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Origin of nitrobacteria

First recorded in 1890–95; nitro- + bacteria
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for nitrobacteria

nitrobacteria

pl n singular -terium (-ˈtɪərɪəm)
  1. soil bacteria of the order Pseudomonadales that are involved in nitrification, including species of Nitrosomonas and Nitrobacter
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012