Source : Webster's Revised Unabridged Dictionary (1913)

   {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.

Congreve rocket \Con"greve rock"et\
   See under {Rocket}.