- The definition of aftermarket refers to the buying and selling of parts or equipment for a product after the initial product was manufactured and sold.
The supply and demand for replacement ink cartridges for a printer is an example of an aftermarket.
aftermarket definition by Webster's New World
aftermarket - Business Definition
aftermarket - Computer Definition
Refers to products that are offered as replacements for an original part. An aftermarket product may be identical to the original or offer entirely different features.