arsenal Meaning, Definition & Usage

  1. noun all the weapons and equipment that a country has
    armory; armoury.
  2. noun a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms
    armory; armoury.
  3. noun a place where arms are manufactured
    armory; armoury.

WordNet

Ar"se*nal noun
Etymology
Sp. & F. arsenal arsenal, dockyard, or It. arzanale, arsenale (cf. It. & darsena dock); all fr. Ar. darina'a house of industry or fabrication; dar house + ina art, industry.
Definitions
  1. A public establishment for the storage, or for the manufacture and storage, of arms and all military equipments, whether for land or naval service.

Webster 1913