dame's rocket definition by American Heritage Dictionary
noun pl. dame's rockets
A European plant (Hesperis matronalis) having clusters of fragrant purple to white flowers. Also called dame's violet.
Variant of dame's violet
an old-fashioned garden flower (Hesperis matronalis) of the crucifer family, with white or purple fragrant flowers in spring and early summer
also dame's rocket
Origin: translated, translation of Modern Latin viola matronalis