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2 definitions found
 for Congreve rocket
From The Collaborative International Dictionary of English v.0.48 :

  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.
     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]

From The Collaborative International Dictionary of English v.0.48 :

  Congreve rocket \Con"greve rock"et\
     See congreve and cf. Rocket.
     [1913 Webster +PJC]

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