tubercle bacillus

bacillus /ba·cil·lus/ (bah-sil´us) pl. bacil´li   [L.]

1. an organism of the genus Bacillus.

2. any rod-shaped bacterium.

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Calmette-Guérin bacillus  bacille Calmette-Guérin.

coliform bacilli  gram-negative bacilli resembling Escherichia coli that are found in the intestinal tract; the term generally refers to the genera Citrobacter, Edwardsiella, Enterobacter, Escherichia, Klebsiella, and Serratia.

dysentery bacilli  gram-negative non–spore-forming rods causing dysentery in humans; see Shigella.

enteric bacillus  a bacillus belonging to the family Enterobacteriaceae.

tubercle bacillus  Mycobacterium tuberculosis.

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tubercle bacillus

n.

The rod-shaped, gram-negative, aerobic bacterium Mycobacterium tuberculosis that causes tuberculosis. Also called Koch's bacillus.

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bacillus

pl. bacilli [L.]

1. an organism of the genus Bacillus.

2. any rod-shaped bacterium.

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Battey bacillus

mycobacteriumintracellulare.

Calmette-Guérin bacillus

mycobacteriumbovis, rendered completely avirulent by cultivation over a long period on bile-glycerol-potato medium. See also bcg vaccine.

Friedländer's bacillus

klebsiellapneumoniae.

glanders bacillus

burkholderiamallei (previously Pseudomonas mallei).

Hansen's bacillus

mycobacteriumleprae.

tubercle bacillus

mycobacteriumtuberculosis.

typhoid bacillus

salmonellatyphi.