Arsenal \Ar"se*nal\, n. [Sp. & F. arsenal arsenal, dockyard, or It. arzanale, arsenale (cf. It. & darsena dock); all fr. Ar. d[=a]r?in[=a]'a house of industry or fabrication; d[=a]r house + ?in[=a] art, industry.]

A public establishment for the storage, or for the manufacture and storage, of arms and all military equipments, whether for land or naval service.

Source: Webster's Revised Unabridged Dictionary (1913)