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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for bitcoin

Contemporary Examples of bitcoin