rhizobium

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noun

Any of various bacteria, of the genus Rhizobium, that form nodules on the roots of legumes and fix nitrogen.

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Meanings

nounrhizobium (plural rhizobia)

plural rhizobia

  1. biologyAny of various bacteria, of the genus Rhizobium, that form nodules on the roots of legumes and fix nitrogen.
  2. broadlybiologyAny diazotrophic bacterium that can fix nitrogen and form root nodules in legumes.

Synonyms & antonyms

Broader
nitrogen fixer

Origin

From the genus name.

Full word history & related roots →

Translations

Finnish Rhizobium-bakteeri
  • Rhizobium-bakteeribacterium of the genus Rhizobium
Polish bakterioryza
  • bakterioryzabacterium of the genus Rhizobium
Cite this entry
APA

rhizobium. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rhizobium

MLA

“rhizobium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rhizobium. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rhizobium,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rhizobium.

Source: rhizobium on Wiktionary, CC BY-SA 4.0.