Seed

1. When referring to computer programming, security, or software a random seed is a number or other value that has been generated by software using one or more values. For example, hardware information, time, and/or date are different examples of values that can be used as a seed to generate a random value that can be used by a program or in security data with encryption.
2. With BitTorrent a seed is client on BitTorrent that is only sharing a complete file.

Also see: Programming definitions, Random, Security definitions