bay·o·net (b???-n?t?, b???-n?t, -n?t?)n. A blade adapted to fit the muzzle end of a rifle and used as a weapon in close combat.tr.v. bay·o·net·ed, bay·o·net·ing, bay·o·nets or bay·o·net·ted or bay·o·net·ting To prod, stab, or kill with this weapon.[French baïonnette, after Bayonne, a town of southwest France where the weapon was manufactured.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.bayonet (?be??n?t) n1. (Arms & Armour (excluding Firearms)) a blade that can be attached to the muzzle of a rifle for stabbing in close combat2. (Mechanical Engineering) a type of fastening in which a cylindrical member is inserted into a socket against spring pressure and turned so that pins on its side engage in slots in the socketvb, -nets, -neting, -neted, -nets, -netting or -netted (Military) (tr) to stab or kill with a bayonet[C17: from French baïonnette, from Bayonne where it originated]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014bay?o?net (?be? ? n?t, -?n?t, ?be? ??n?t) n., v. -net?ed -net?ted, -net?ing -net?ting. n. 1. a daggerlike steel weapon attached to the muzzle of a gun for hand-to-hand combat. 2. a pin or flange that serves to lock in place a lens inserted into a camera or a flashbulb in a socket. v.t. 3. to kill or wound with a bayonet. [1605?15;