In*form"er (?), n. [From Inform,v.]
One who informs, animates, or inspires.
Nature, informer of the poet's art.
One who informs, or imparts knowledge or news.
One who informs a magistrate of violations of law; one who informs against another for violation of some law or penal statute.
Common informer Law, one who habitually gives information of the violation of penal statutes, with a view to a prosecution therefor. Bouvier. Wharton.
© Webster 1913.