Definition of full beam noun from the Oxford Advanced Learner's Dictionary


full beam

BrE BrE//ˌfʊl ˈbiːm//
; NAmE NAmE//ˌfʊl ˈbiːm//
[uncountable] (British English) Driving
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the brightest light that a vehicle’s headlights can give, usually used when there are no street lights and no other traffic Even with the lights on full beam I couldn't see very far. See related entries: Driving