guncotton; cotton powder
Technical term for nitrocellulose used as a propellant or explosive.
綿火薬はニトロセルロースを主成分とする火薬の一種です。
Guncotton is a type of explosive whose main component is nitrocellulose.
Compound of 綿 (cotton) and 火薬 (gunpowder), referring to the cotton-like appearance of the nitrated cellulose.