1. The variety of language in a POST-CREOLE CONTINUUM most different from the STANDARD or SUPERSTRATE language: for example, Jamaican Creole as opposed to standard English
2. The least prestigious variety of a language, such as Gutter Glasgow in Scotland and Brooklyn in New York City. See DIALECT.
"BASILECT." Concise Oxford Companion to the English Language. . Encyclopedia.com. (February 23, 2018). http://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/basilect
"BASILECT." Concise Oxford Companion to the English Language. . Retrieved February 23, 2018 from Encyclopedia.com: http://www.encyclopedia.com/humanities/encyclopedias-almanacs-transcripts-and-maps/basilect