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| ba·cil·lus [ bə sílləss ] (plural ba·cil·li [ bə síl ]) |
noun |
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| Definition: |
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rod-shaped bacterium: an aerobic, rod-shaped, spore-producing bacterium. Bacilli occur mainly in chains and include many saprophytes, some parasites, and the bacterium that causes anthrax. Genus Bacillus.
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| [Late 19th century. < late Latin, "little rod" < baculus "rod, stick"] |
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