portfire
portfire
(ˈpɔːtˌfaɪə)n
(Firearms, Gunnery, Ordnance & Artillery) (formerly) a slow-burning fuse used for firing rockets and fireworks and, in mining, for igniting explosives
[C17: from French porte-feu, from porter to carry + feu fire]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014