Jăc'ū-lā'tor, n.
n. [Lat., one who throws or darts. See supra.]
Sense 1. One who jaculates.
Sense 2. (Ichth.) The shooting-fish, a species of Chætodon, found in hot climates. It feeds on insects, which it procures by shooting or ejecting a drop of water through its tubular snout with such precision as to disable its prey and cause it to fall into the water.