In-fôr'm'er, n.
n. 1. One who informs, animates, or gives intelligence.
Sense 2. (Law.) One who communicates to a magistrate a knowledge of the violations of law; one who informs against another for the violation of some law or penal statute.
Sense 3. One who makes a business of informing against others; — used popularly and in a bad sense.
Common informer (Law), one who habitually gives information of the violation of penal statutes, with a view to a prosecution therefor. Bouvier. Wharton.
Synonyms—See INFORMANT.