deadly weap·on n: an object whose purpose is to cause death or that when used as an instrument of offense is capable of causing death or sometimes serious bodily harm compare dangerous weapon
◇ An unloaded firearm has been generally held to be a deadly weapon. Although usu. distinct, the terms deadly weapon and dangerous weapon are sometimes used interchangeably.
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.