7. The noise in the throat produced by the air in passing through mucus which the lungs are unable to expel; — chiefly observable at the approach of death, when it is called the death rattle. See Râle. To spring a rattle, to cause it to sound. — Yellow rattle (Bot.), a yellow-flowered herb (Rhinanthus Crista- galli), the ripe seeds of which rattle in the inflated calyx.
RATTLEBOX
Rat"tle*box`, n.
1. 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. (b) Any species of Crotalaria, a genus of yellow-flowered herbs, with inflated, many-seeded pods.
RATTLE-BRAINED
Rat"tle-brained`, a.
Defn: Giddy; rattle-headed.
RATTLEHEAD
Rat"tle*head`, n.
Defn: An empty, noisy talker.
RATTLE-HEADED
Rat"tle-head`ed, a.
Defn: Noisy; giddy; unsteady.