qubit

British

/ ˈkjuːbɪt /

noun

computing a quantum bit

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

qubit Scientific

/ kyo̅o̅′bĭt′ /

See quantum bit

Etymology

Origin of qubit

C20: from _qu ( _antum ) + _bit ⁴

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In fact, its companies represent between them the full range of qubit types – all the routes physicists are hoping will lead to the first reliable and ultra-powerful quantum computer.

From BBC • Apr. 13, 2026

In quantum computers that is done with qubits where, in each qubit, the quantum properties of an individual electron or photon are manipulated.

From BBC • Apr. 13, 2026

With each qubit added to a chip, the chip becomes exponentially more powerful, as qubits can talk to each other, informing each other of their state.

From The Wall Street Journal • Mar. 17, 2026

By running the experiment directly on the FPGA, they could quickly generate a "best guess" of how fast the qubit was losing energy using only a few measurements.

From Science Daily • Feb. 20, 2026

A bit flip occurs when a qubit unexpectedly switches between '0' and '1'.

From Science Daily • Feb. 6, 2026

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023