Qubit definitions

kyo͝o'bĭt'
(QUantum BIT) A unit of data in a quantum computer. The "bit" in qubit is somewhat misleading. Unlike a bit (binary digit) in a digital computer, which can hold a 0 or 1, a qubit can represent both a 0 and 1 at the same time. In addition, the qubit is not a storage cell as in RAM or flash memory but is typically one or more electrons. See quantum computing.
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(computing) A quantum bit; the unit of quantum information; a bit in a quantum computer capable of being in a state of superposition.
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Origin of qubit

Blend of quantum and bit, influenced by cubit.