A collection of instruments and other equipment for an operation or for a medical procedure. ... (05 Mar 2000) ... 
(in″strә-mәn-tar´e-әm) the equipment or instruments required for any particular operation or purpose; the physical adjuncts with which a health care provider combats disease.
Type: Term Pronunciation: in′strū-men-tār′ē-ŭm Definitions: 1. A collection of instruments and other equipment for an operation or for a medical procedure.