ar·ma·men·tar·i·um | \ ˌär-mə-ˌmen-ˈter-ē-əm , -mən- \
plural armamentaria\ ˌär-mə-ˌmen-ˈter-ē-ə \
Definition of armamentarium
: a collection of resources available or utilized for an undertaking or field of activity.
: the aggregate of equipment, methods, and techniques available to one for carrying out one’s duties.
: a fruitful source of devices or materials available or used for an undertaking.
Mid 17th century (in the sense ‘building in which arms and armour are kept, arsenal’): from Latin, ‘arsenal, armoury’.