Definition of sea level noun from the Oxford Advanced Learner's Dictionary


sea level

BrE BrE//ˈsiː levl//
; NAmE NAmE//ˈsiː levl//
[uncountable] Coastlines and the sea
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the average height of the sea/ocean, used as the basis for measuring the height of all places on land 50 metres above sea level See related entries: Coastlines and the sea
See the Oxford Advanced American Dictionary entry: sea level