timescale

noun

time·​scale ˈtīm-ˌskāl How to pronounce timescale (audio)
: 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
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.
Studying these galaxies together helps astronomers understand how galaxies interact, evolve and influence one another over cosmic timescales. Kenna Hughes-Castleberry, Space.com, 4 Nov. 2025 In due course of time, the organic material decayed, and the skeleton underneath fossilized over longer timescales. Abhishek Bhardwaj, Interesting Engineering, 24 Oct. 2025 The problem with cars as smartphones on wheels is that these two machines live and die on very different timescales. Andrew Moseman, The Atlantic, 21 Oct. 2025 The light from the radio circle has traveled for 7.5 billion years to reach Earth and could provide insights into the roles that odd radio circles play in the evolution of galaxies over different timescales, which is not well known. Ashley Strickland, CNN Money, 14 Oct. 2025 See All Example Sentences for timescale

Word History

First Known Use

1890, in the meaning defined above

Time Traveler
The first known use of timescale was in 1890

Browse Nearby Words

Cite this Entry

“Timescale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/timescale. Accessed 8 Nov. 2025.

Kids Definition

timescale

noun
time·​scale ˈtīm-ˌskāl How to pronounce timescale (audio)
: an arrangement of events used as a measure of the duration or age of a period of history or geologic or cosmic time
Last Updated: - Updated example sentences
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