Definition of listeria noun from the Oxford Advanced Learner's Dictionary

 

listeria

 noun
noun
BrE BrE//ˈstɪər//
 
; NAmE NAmE//ˈstɪr//
 
[uncountable]
 
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a type of bacteria that makes people sick if they eat infected food Word Origin 1940s: modern Latin, named after Joseph Lister (1827-1912), the English surgeon.
See the Oxford Advanced American Dictionary entry: listeria