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Organ gun

//ˌɔːɡ(ə)n ˈɡʌn// noun

Noun

1
A large, portable firearm normally supported by wheels, in which bullets may be fired from a row of several tubes in succession; it was chiefly used from the 14th to the 17th century. historical
"The attempts to re-invest the artillery with its one-time superiority were directed in two channels: one aimed at perfecting shrapnel, which had been rather neglected up to this time (England, Prussia, Austria), while the other resurrected the mediaeval idea of the "barrel-organ gun," with a view of assembling a number of rifle barrels and of combining thereby the accuracy of the small arm with the moral effect of canister."

From organ + gun. The multiple barrels of the device were thought to resemble the pipes of a pipe organ.

Unscramble this word: organgun