yersinia
noun
yer·sin·ia yər-ˈsin-ē-ə 
1
capitalized : a genus of gram-negative bacteria (family Yersiniaceae) that includes several important pathogens (as the plague bacterium, Y. pestis) affecting animals and humans
see plague sense 2
2
: any bacterium of the genus Yersinia
Cite this Entry
“Yersinia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.grautoblog.com/medical/yersinia. Accessed 26 Apr. 2026.
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