Pronunciation: (ôr'ku-strāt"), [key]
—v.t., v.i., -trat•ed, -trat•ing.
1. to compose or arrange (music) for performance by an orchestra.
2. to arrange or manipulate, esp. by means of clever or thorough planning or maneuvering: to orchestrate a profitable trade agreement.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.