bitcoin

[bit-koin]
noun
  1. (often initial capital letter) a type of digital currency that uses state-of-the-art cryptography, can be issued in any fractional denomination, and has a decentralized distribution system: stores and online businesses that accept Bitcoin.
  2. a single unit of this currency: the current value of a bitcoin.

Origin of bitcoin

First recorded in 2005–10; bit3 + coin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Contemporary Examples of bitcoin