rhizobium

Etymology
From the genus name.

Noun

 * 1)  Any of various bacteria, of the genus, that form nodules on the roots of legumes and fix nitrogen.
 * 2)  Any diazotrophic bacterium that can fix nitrogen and form root nodules in legumes.

Translations

 * Finnish: Rhizobium-bakteeri
 * Polish: bakterioryza