Rat"tle*box` (?), n.
A toy that makes a rattle sound; a rattle.
2. Bot. (a)
An American herb (Crotalaria sagittalis), the seeds of which, when ripe, rattle in the inflated pod.
Any species of Crotalaria, a genus of yellow-flowered herbs, with inflated, many-seeded pods.
© Webster 1913.