Definition of bitcoin noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈbɪtkɔɪn//
    ; NAmE NAmE//ˈbɪtkɔɪn//
    (abbreviation BTC)
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  1. 1[uncountable] a system of electronic money, used for buying and selling online and without the need for a central bank Bitcoin is traded on online exchanges.
  2. 2[countable] a unit of the bitcoin electronic system of money There are more than 6.5 million bitcoins in circulation.