rhizobium

[rahy-zoh-bee-uh m]
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noun, plural rhi·zo·bi·a [rahy-zoh-bee-uh] /raɪˈzoʊ bi ə/. Bacteriology.

any of several rod-shaped bacteria of the genus Rhizobium, found as symbiotic nitrogen fixers in nodules on the roots of the bean, clover, etc.

Nearby words

  1. rhinotomy,
  2. rhinovirus,
  3. rhipicephalus,
  4. rhizanthous,
  5. rhizo-,
  6. rhizocarpous,
  7. rhizocephalan,
  8. rhizocephalous,
  9. rhizoctonia,
  10. rhizogenic

Origin of rhizobium

< New Latin (1889), equivalent to rhizo- rhizo- + Greek bí(os) life (see bio-) + Latin -um noun suffix

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British Dictionary definitions for rhizobium

rhizobium

noun plural -bia (-bɪə)

any rod-shaped bacterium of the genus Rhizobium, typically occurring in the root nodules of leguminous plants and able to fix atmospheric nitrogenSee also nitrogen fixation

Word Origin for rhizobium

C20: from rhizo- + Greek bios life

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