Added 10 October 2026 metafunction noun noun ! Definition from Wiktionary (CC BY-SA). More about metafunction at Wordnik → Where our words come from → A function which calls all the other functions of a certain program; the only function that can be called independently. A construct that performs a mapping between entities at compile time. A group of grammatical systems that make meanings of a related kind. Related Words: ideationalmetaprogrammodifiermetacommandmacrocodemetaprogrammingmetacompilationmetaprogrammermetamachinemacroinstruction Back to today's word