Bal-lĭs'tȧ, n.

noun

Bal-lĭs'tȧ, n.; pl. BAL-LĬS'TÆ. [Lat. ballista, balista, from Gr. βάλλειν, to throw.] A machine or engine, in the form of a cross-bow, used by the ancients in war for throwing stones, &c.