ordnance Meaning, Definition & Usage

  1. noun military supplies
    ordnance store; munition.
  2. noun large but transportable armament
    heavy weapon; artillery; gun.

WordNet

Ord"nance noun
Etymology
From OE. ordenance, referring orig. to the bore or size of the cannon. See Ordinance.
Definitions
  1. Heavy weapons of warfare; cannon, or great guns, mortars, and howitzers; artillery; sometimes, a general term for all weapons and appliances used in war.
    All the battlements their ordnance fire. Shak.
    Then you may hear afar off the awful roar of his [Rufus Choate's] rifled ordnance. E. Ererett.

Webster 1913