Testnet

Also known as: Morden

A testing network for a decentralized project, that allows testing of experimental features.

The testnet is an alternative Bitcoin or Ethereum block chain, to be used for testing. Testnet coins are separate and distinct from actual coins, and are never supposed to have any value. This allows application developers or bitcoin testers to experiment, without having to use real bitcoins or worrying about breaking the main bitcoin or ethereum chain.