rhizobium

[ rahy-zoh-bee-uhm ]

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.

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

/ (raɪˈzəʊbɪəm) /

nounplural -bia (-bɪə)

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

Origin of 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

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