Anything that is being used as a medium of exchange is money. Bitcoin, like gold, is money.
Bingo!
I second emotion that any current medium of exchange is considered as money its just that were not used to something that we don't actually see or hold on to but I think bitcoins can be considered a money also. But still I'm wondering then even ideas are considered money too? Because we sometimes use it as a medium of exchange also in return for something valuable. Maybe I'll research a more concrete definition but for me bitcoin is still a money even its logo is like a currency.