yersinia yer·sin·i·a (yər-sĭn'ē-ə)
n.
A bacterium of the genus Yersinia.
Yersinia n.
A genus of gram-negative parasitic bacteria of the family Enterobacteriaceae that cause various diseases in humans and animals.
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a scrap or morsel of food left at a meal. |