quantum computer

noun

: a computer that takes advantage of the quantum properties of qubits to perform certain types of calculation extremely quickly compared to conventional computers
quantum computing noun
A "geek at heart," Samet, 34, is fascinated by quantum computing, a still-emerging field that involves the behavior of subatomic particles in computing. Karen Breslau

Examples of quantum computer in a Sentence

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However, many unresolved issues remain to be addressed before quantum computers become mainstream. Ameya Paleja, Interesting Engineering, 17 Dec. 2025 Before Horizon Quantum’s system came online, Singapore reportedly had one quantum computer, used primarily for research purposes. Dylan Butts, CNBC, 4 Dec. 2025 If Microsoft’s Majorana quantum processor is successful or quantum computers can be built at scale, CEO Satya Nadella might be forced yet again to bet the future on something fresh out of the research lab. Reed Albergotti, semafor.com, 3 Dec. 2025 This ability to hold two states at once means that quantum computers should one day be able to excel at solving incredibly complex scientific puzzles at speeds never thought possible. New Atlas, 28 Nov. 2025 See All Example Sentences for quantum computer

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of quantum computer was in 1982

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Cite this Entry

“Quantum computer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20computer. Accessed 24 Dec. 2025.

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