Bible Dictionaries
Portfire

Webster's Dictionary

(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.

Bibliography Information
Webster, Noah. Entry for 'Portfire'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/portfire.html. 1828.