rocket larkspur n 1: commonly cultivated larkspur of southern Europe having unbranched spikelike racemes of blue or sometimes purplish or pinkish flowers; sometime placed in genus Delphinium [syn: {rocket larkspur}, {Consolida ambigua}, {Delphinium ajacis}]
Rocket \Rock"et\, n. [F. roquette (cf. Sp. ruqueta, It ruchetta), fr. L. eruca.] (Bot.) (a) A cruciferous plant ({Eruca sativa}) sometimes eaten in Europe as a salad. (b) Damewort. (c) Rocket larkspur. See below. [1913 Webster] {Dyer's Rocket}. (Bot.) See {Dyer's broom}, under {Broom}. {Rocket larkspur} (Bot.), an annual plant with showy flowers in long racemes ({Delphinium Ajacis}). {Sea rocket} (Bot.), either of two fleshy cruciferous plants ({Cakile maritima} and {Cakile Americana}) found on the seashore of Europe and America. {Yellow rocket} (Bot.), a common cruciferous weed with yellow flowers ({Barbarea vulgaris}). [1913 Webster]