noun 2.a person who supplies social or cultural data in answer to the questions of an investigator.
3.Linguistics. a native speaker of a
language who supplies utterances and forms for one analyzing or learning the language.
Origin: 1655–65; <
Latin infōrmant- (stem of
infōrmāns) present participle of
infōrmāre. See
inform1,
-ant Synonyms
1. source, adviser, tipster.