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



BrE BrE//ˈɡremlɪn//
; NAmE NAmE//ˈɡremlɪn//
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an imaginary creature that people blame when a machine suddenly stops working They blamed gremlins in the printer for the fact that the work was late. What wrong with this program? Looks like the gremlins have been at work again! Word Origin1940s: perhaps suggested by goblin.
See the Oxford Advanced American Dictionary entry: gremlin