Pronunciation: (af'tur mär"kit, äf'-), [key]
1. the market for replacement parts, accessories, and equipment for the care or enhancement of the original product, esp. an automobile, after its sale to the consumer: The company holds a large share in the automotive radio aftermarket.
2. any additional market created by a product after the primary market: Television is the perfect aftermarket for old movies.
3. Stock Exchange.See secondary market.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.