Informant
Pronunciation : In*form"ant
Part of Speech : n.
Etymology : [L. informans, -antis, p.pr. of informare. See Inform, v. t.]
Definition : 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.
Source : Webster's Unabridged Dictionary, 1913