quantum leap

noun

plural quantum leaps
: an abrupt change, sudden increase, or dramatic advance

Note: Quantum leap is rarely used in scientific contexts, but it originated as a synonym of quantum jump, which describes an abrupt transition (as of an electron, an atom, or a molecule) from one discrete energy state to another.

Examples of quantum leap in a Sentence

Prices have taken a quantum leap upward. The new drug is a quantum leap in the fight against cancer.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Chess on grass The change in tack since 2019 is a quantum leap. Phil Hay, The Athletic, 23 July 2024 The quantum leap came with the arrival of the railroad in 1871. Michael Barnes, Austin American-Statesman, 13 Feb. 2024 The quantum leap in cryptography is upon us, and those who prepare now will be best positioned to thrive in the post-quantum world. Anand Kashyap, Forbes, 21 Oct. 2024 Embracing the freedom to retreat facilitates a quantum leap while the sun meets Uranus. USA TODAY, 19 Sep. 2024 See all Example Sentences for quantum leap 

Word History

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of quantum leap was in 1956

Dictionary Entries Near quantum leap

Cite this Entry

“Quantum leap.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quantum%20leap. Accessed 18 Dec. 2024.

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