In*form"ant (?), n. [L. informans, -antis, p.pr. of informare. See Inform, v. t.]
1.
One who, or that which, informs, animates, or vivifies.
[Obs.]
Glanvill.
2.
One who imparts information or instruction.
3.
One who offers an accusation; an informer. See Informer.
[Obs. or R.]
It was the last evidence of the kind; the informant
was hanged.
Burke.
© Webster 1913.