Definition of "rattlebox"

A toy or instrument that makes a rattle sound; a rattle.  examples

An American herb (Crotalaria sagittalis), whose ripe seeds rattle in the inflated pod.  examples

Any species of Crotalaria, a genus of yellow-flowered herbs, with inflated, many-seeded pods.  examples

An ornamental shrub (Sesbania punicea) native to Brazil, Argentina, Paraguay and Uruguay.  examples

Any species of Rhinanthus, a genus of annual hemiparasitic herbaceous plants.  examples

Senna covesii, a perennial subshrub native to the United States and Mexico.  examples

A species of moth, (Utetheisa ornatrix), that feeds on Crotalaria.  examples