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yeomanry
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yersinia
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yersinia

yer·sin·i·a [ yur sínnee ə ]


noun 
Definition:
 
disease-causing bacterium: a Gram-negative bacterium that may cause disease in humans and animals. One of these bacteria is a cause of gastric infections, while another causes bubonic plague. Genus Yersinia.

[Mid-20th century. < After A. E. J. Yersin (1863-1943), Swiss-born French bacteriologist]
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