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Any of various bacteria, especially those of the genus Rhizobium, that carry out nitrogen fixation in the root nodules of leguminous plants and often change markedly in size and shape after they enter the roots.
(Microbiology) resembling a bacterium
(Microbiology) any rodlike bacterium of the genus Bacteroides, occurring in the gut of humans and animals
1. any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants.adj.
2. Also, bac`te•roi′dal. resembling bacteria.
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|Noun||1.||bacteroid - a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants)|
|Adj.||1.||bacteroid - resembling bacteria|