noun af·ter·mar·ket \ˈaf-tər-ˌmär-kət\

Definition of aftermarket

  1. 1 :  the market for parts and accessories used in the repair or enhancement of a product (such as an automobile)

  2. 2 :  a secondary market available after sales in the original market are finished a movie in the videocassette aftermarket

  3. 3 :  the market for a stock following its initial public offering when its shares can be freely traded among investors


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