shotgun

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shotgun:

see small armssmall arms,
firearms designed primarily to be carried and fired by one person and, generally, held in the hands, as distinguished from heavy arms, or artillery. Early Small Arms

The first small arms came into general use at the end of the 14th cent.
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shotgun

[′shät‚gən]
(ordnance)
A smooth-bore shoulder weapon; the usual classes are riot gun, skeet gun, and sporting gun.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

shotgun

American football an offensive formation in which the quarterback lines up for a snap unusually far behind the line of scrimmage
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005