English

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

 

epsilon

 noun
noun
BrE BrE//ˈepsɪlɒn//
 
, BrE//epˈsaɪlɒn//
 
; NAmE NAmE//ˈepsɪlɑːn//
 
 
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the fifth letter of the Greek alphabet (E, ϵ) Word OriginGreek, ‘bare or simple E’, from psilos ‘bare’.
See the Oxford Advanced American Dictionary entry: epsilon