from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of nitrobacterium.
from the GNU version of the Collaborative International Dictionary of English
- n. Soil bacteria that convert nitrites to nitrates.
from The Century Dictionary and Cyclopedia
- Soil bacteria which oxidize nitrous acid to nitric acid. See nodule- bacteria, with cut.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. soil bacteria that convert nitrites to nitrates
Sorry, no etymologies found.