What is "natural language"

n. 1 (context retronym countable English) a human language which has evolved naturally in a community, usually in contrast to computer programming languages or to artificially constructed languages such as http://en.wikipedia.org/wiki/Esperanto. 2 (context uncountable English) natural languages (sense 1) considered collectively

n. a human written or spoken language used by a community; opposed to e.g. a computer language [syn: tongue] [ant: artificial language]

In neuropsychology, linguistics and the philosophy of language, a natural language or ordinary language is any language that has evolved naturally in humans through use and repetition without conscious planning or premeditation. Natural languages can take different forms, such as speech, signing, or writing. They are distinguished from constructed and formal languages such as those used to program computers or to study logic.