a powder flask consisting of the hollow horn of an animal
powder horn in American English
a container made of an animal's horn, for carrying gunpowder
powder horn in American English
noun
a powder flask made from the horn of a cow or ox
Word origin
[1525–35]This word is first recorded in the period 1525–35. Other words that entered Englishat around the same time include: inflection, invest, shuffle, society, spoiler