Ĭg'no-rā'mus, n.
n. [Lat., we are ignorant, from ignorare, to be ignorant of. See IGNORE.]
Sense 1. (Law.) We ignore;—being the word formerly written on a bill of indictment by a grand jury when there was not sufficient evidence to warrant them in finding it a true bill. The phrase now used is, “not a true bill,” or “not found.” [Obs.] Wharton. Burn.
Sense 2. (pl. ĬG'NO-RĀ'MUS-ES.) An ignorant person; a vain pretender to knowledge. “An ignoramus in place and power.” South.