1. a collection of equipment, tools, or resources available for a particular purpose, especially in medicine or surgery
Usage: formal; often used in medical and scientific contexts
2. the complete set of weapons and military equipment of a nation or armed force
Usage: formal; military context

Examples

• The surgeon's armamentarium included advanced laparoscopic instruments.
• Modern medicine has expanded its armamentarium of treatments for cancer.
• The country's military armamentarium was strengthened with new defense systems.
• Psychologists draw from a diverse armamentarium of therapeutic techniques.
• The dentist's armamentarium contained the latest diagnostic and treatment tools.
• Researchers added several new drugs to the armamentarium against infectious disease.