Pronunciation: (in"tur-ak'tiv), [key]
1. acting one upon or with the other.
2. of or pertaining to a two-way system of electronic communications, as by means of television or computer: interactive communications between families using two-way cable television.
3. (of a computer program or system) interacting with a human user, often in a conversational way, to obtain data or commands and to give immediate results or updated information: For many years airline reservations have been handled by interactive computer systems.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.