negative option: Meaning and Definition of

neg'ative op'tion

Pronunciation: [key]
  1. a clause in a sales contract, as for a series of books or records, that provides that merchandise will be sent periodically to the subscriber unless he or she notifies the company in writing that it is not wanted.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.