acrolectPronunciation: /ˈakrə(ʊ)lɛkt/Definition of acrolect noun Linguistics the most prestigious dialect or variety of a particular language. Contrasted with basilect.Derivatives acrolectal adjective Origin: 1960s: from Greek akron 'summit' + -lect as in dialectacrolect in other Oxford dictionaries Definition of acrolect in the US English dictionary