patois

the special terms or expressions of a particular group or field the medical patois that the hospital staffers used among themselves was incomprehensible to me Synonyms argot, cant, dialect, jargon, jive, language, lingo, terminology, patter, shop, shoptalk, slang, vocabularyRelated Words colloquial, colloquialism, idiom, localism, parlance, pidgin, provincialism, regionalism, speech, vernacular, vernacularism; slanguage; bureaucratese, computerese, cyberspeak, educationese, governmentese, journalese, technobabble