1.The act of using or adapting as an instrument; a series or combination of instruments; means; agency. "Otherwise we have no sufficient instrumentation for our human use or handling of so great a fact."
3.The act of using instruments to measure or control the behavior of an object, as a patient in a hospital or a machine being tested while under development.
4.The act of furnishing or attaching instruments to/
5.The set of instruments included in a system; as, a harvester with modern instrumentation.