Nitrobacteraceae
plural noun
Ni·tro·bac·te·ra·ce·ae ¦nī-(ˌ)trō-(ˌ)bak-tə-¦rā-sē-ˌē 
variants or less commonly Nitrobacteriaceae
¦nī-(ˌ)trō-(ˌ)bak-ˌtir-ē-¦ā-sē-ˌē
in some classifications
: a family of bacteria capable of using carbon dioxide as a source of carbon and obtaining energy by oxidation of ammonia or nitrites see nitrifying bacterium
Word History
Etymology
New Latin, irregular from Nitrobacter, type genus + -aceae