spin-off

noun

1. 1

   An offshoot.

2. 2

   An incidental benefit or unexpected pay-off.

   “Space research often provides a spin-off for everyday technology.”

3. 3

   By-product.

4. 4

   A fictional work where the protagonist was introduced in a preceding work or at least shares the same setting, often in a different aspect.

   “"Frasier" was a spin-off from the sitcom "Cheers".”

5. 5

   The formation of a subsidiary company that continues the operations of part of the parent company; the company so formed.