time·​scale | \ ˈtīm-ˌskāl How to pronounce timescale (audio) \

Definition of timescale

: an arrangement of events used as a measure of the relative or absolute duration or antiquity of a period of history or geologic or cosmic time

Examples of timescale in a Sentence

When considered on the 4.6 billion year timescale of the Earth, our lives can seem insignificant. What is the timescale for completion of the work?
Recent Examples on the Web Unlike WIMPs, however, axions are predicted to decay into two photons over timescales that extend far beyond the age of our universe. Emily Toomey, Smithsonian Magazine, "New Generation of Dark Matter Experiments Gear Up to Search for Elusive Particle," 3 Feb. 2020 This is the first time it’s been proven on such a short timescale, and Knutti says part of the innovation of the study is the methodology. Heather Hansman, Outside Online, "Climate Change Is Ruining My Birthday," 1 Feb. 2020 The simulations took place on a 10,000-year timescale. Ashley Strickland, CNN, "Inbreeding may have helped cause Neanderthals to go extinct, study says," 27 Nov. 2019 These would obviously cause a star to vanish, though the timescale of its dimming and eventual disappearance would be anyone's guess. John Timmer, Ars Technica, "Finding stars that vanished—by scouring old photos," 24 Dec. 2019 But in the real world, the wave function branches incredibly fast, on timescales of 10−21 seconds or less. Quanta Magazine, "Where Quantum Probability Comes From," 9 Sep. 2019 According to The Guardian, Martial is 'expected' to miss the weekend clash but further details around the timescale of his layoff are unknown. SI.com, "Anthony Martial 'Expected' to Miss Clash With Southampton Through Injury," 27 Aug. 2019 On such a timescale the range of estimates for the impact of global warming should be quite narrow, says James McMahon of Climate Service. The Economist, "Firms that analyse climate risks are the latest hot property," 23 Nov. 2019 At the same time, the subterranean environment experienced temperature oscillations over geological timescales, just inching above and below 68 degrees. Robin George Andrews, National Geographic, "These human-size crystals formed in especially strange ways," 22 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'timescale.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of timescale

1890, in the meaning defined above

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The first known use of timescale was in 1890

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Last Updated

17 Feb 2020

Cite this Entry

“Timescale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/timescale. Accessed 28 Feb. 2020.

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English Language Learners Definition of timescale

: a period of time whose size can be compared to other periods of time

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