Portfire

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Portfire \Port"fire`\, n.
     A case of strong paper filled with a composition of niter,
     sulphur, and mealed powder, -- used principally to ignite the
     priming in proving guns, and as an incendiary material in
     shells.
     [1913 Webster]