Thompson submachine gun

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Thompson submachine gun

[′täm·sən ¦səb·mə′shēn ‚gən]
(ordnance)
Caliber-.45, air-cooled automatic weapon that can be carried and operated by one person.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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He added: "A rifle as well as Thompson guns and revolvers were carried for use against a possible sniper." Costigan said that on the night of Kennedy's arrival, 2,690 gardai - or 42 per cent of the total force - were involved in the security operation.

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