Definitions by Vinceypoos

altcoin 

And alternative cryptocurrency to bitcoin. Bitcoin being the first cryptocurrency, any variation thereon is an Altcoin (or alt-coin)

"Litecoin is my favourite altcoin because it makes ASIC mining more difficulty"

"Namecoin is sort of an altcoin, but also a domain name system"

altcoin by Vinceypoos December 3, 2013