a cellulose nitrate explosive made by treating paper with nitric acid
gunpaper in American English
(ˈɡʌnˌpeipər)
noun
Military
a type of paper treated with nitric acid so that it has a composition similar to that of guncotton
Word origin
[1850–55; gun1 + paper]This word is first recorded in the period 1850–55. Other words that entered Englishat around the same time include: clear-cut, cloakroom, ethos, overprint, proletariat