Rocket
Rocket Rock"et, n. [It. rocchetta, fr. rocca a distaff, of German origin. Named from the resemblance in shape to a distaff. See {Rock} a distaff.] 1. An artificial firework consisting of a cylindrical case of paper or metal filled with a composition of combustible ingredients, as niter, charcoal, and sulphur, and fastened to a guiding stick. The rocket is projected through the air by the force arising from the expansion of the gases liberated by combustion of the composition. Rockets are used as projectiles for various purposes, for signals, and also for pyrotechnic display. [1913 Webster]

2. A blunt lance head used in the joust. [1913 Webster]

3. any flying device propelled by the reactive force of hot gases expelled in the direction opposite its motion. The fuel used to generate the expelled gases in rockets may be solid or liquid; rockets propelled by liquid fuels typically have a combustible fuel (such as hydrogen or kerosene) which is combined inside the rocket engine with an oxidizer, such as liquid oxygen. Single liquid fuels (called monopropellants) are also known. Since rocket engines do not depend on a surrounding fluid medium to generate their thrust, as do airplanes with propellers or jet engines, they may be used for propulsion in the vacuum of space. [PJC]

{Congreve rocket}, a powerful form of rocket for use in war, invented by Sir William Congreve. It may be used either in the field or for bombardment; in the former case, it is armed with shells or case shot; in the latter, with a combustible material inclosed in a metallic case, which is inextinguishable when kindled, and scatters its fire on every side. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • rocket — rocket1 [räk′it] n. [It rocchetta, spool or bobbin, rocket, orig. dim. of rocca, distaff < OHG roccho, distaff: from the resemblance in shape] 1. any of various devices, typically cylindrical, containing liquid or solid propellants which when… …   English World dictionary

  • rocket — rock‧et [ˈrɒkt ǁ ˈrɑː ] also rocket up verb [intransitive] if a price or amount rockets, it increases quickly and suddenly: • Interest rates rocketed. • Mexican shares rocketed up 5.4% yesterday. * * * Ⅰ. rocket UK US /ˈrɒkɪt/ noun [C] …   Financial and business terms

  • 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 …   The Collaborative International Dictionary of English

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  • rocket — Ⅰ. rocket [1] ► NOUN 1) a cylindrical projectile that can be propelled to a great height or distance by the combustion of its contents. 2) a missile or spacecraft propelled by an engine providing thrust on the same principle. 3) Brit. informal a… …   English terms dictionary

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  • rocket — [n] projectile booster, firework, guided missile, ICBM, intercontinental ballistic missile, missile, spacecraft, spaceship, torpedo, weapon; concept 500 rocket [v] shoot up ascend, climb, escalate, go through the ceiling, grow, lift, rise, sail,… …   New thesaurus

  • Rocket — Rock et, v. i. [imp. & p. p. {Rocketed}; p. pr. & vb. n. {Rocketing}.] (Sporting) To rise straight up; said of birds; usually in the present participle or as an adjective. [Eng.] [1913 Webster] An old cock pheasant came rocketing over me. H. R.… …   The Collaborative International Dictionary of English

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