Ĭn'stru-men-tā'tion, n.
n. 1. The act of using, or the subordination of, 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 and our personal appropriation of it, ... no fit medium of thought respecting it. Bushnell.
Sense 2. (Mus.) (a.) The arrangement of a musical composition for performance by a number of different instruments; instrumental composition; composition for an orchestra or military band. (b.) The act or manner of playing upon musical instruments; performance; as, his instrumentation is perfect.