armamentarium

US: (är′mə mən târ′ē əm, -men-)

WordReference Random House Unabridged Dictionary of American English © 2025

ar•ma•men•tar•i•um  (är′mə mən târ′ē əm, -men-), n., pl. -tar•i•a 

(-târ′ē ə). 
1. the aggregate of equipment, methods, and techniques available to one for carrying out one's duties:
   The stethescope is still an essential part of the physician's armamentarium.
2. a fruitful source of devices or materials available or used for an undertaking:
   The new arts center is an armamentarium for creative activity.

• Latin armāmentārium armory, equivalent. to armāment(a) (see armament) + -ārium -arium
• 1855–60