fault-tol·​er·​ant ˈfȯlt-ˌtä-lə-rənt How to pronounce fault-tolerant (audio)
: relating to or being a computer or program with a self-contained backup system that allows continued operation when major components fail
fault tolerance noun

Examples of fault-tolerant in a Sentence

Recent Examples on the Web Fujitsu researchers, the press release claimed, found that cracking an RSA key would require a fault-tolerant quantum computer with a scale of roughly 10,000 qubits and 2.23 trillion quantum gates, and even then, the computation would require about 104 days. Dan Goodin, Ars Technica, 26 Jan. 2023 The research team noted that their integrated chip was compact and plug-and-play compatible, and that topologically protected entangled photons could serve as qubits in fault-tolerant quantum computers and find use in highly secure quantum communications networks. IEEE Spectrum, 23 Feb. 2022 The fear is that, sometime down the road, a fault-tolerant quantum computer will be used to break existing cryptosystems. Kazuhiro Gomi, Forbes, 19 Apr. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'fault-tolerant.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1975, in the meaning defined above

Time Traveler
The first known use of fault-tolerant was in 1975

Dictionary Entries Near fault-tolerant

Cite this Entry

“Fault-tolerant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fault-tolerant. Accessed 2 Mar. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!