geologic time

noun

: the long period of time occupied by the earth's geologic history
geologic time table

Examples of geologic time in a Sentence

Recent Examples on the Web Furthermore, our findings support the idea that bioluminescence has been a critical form of communication through geologic time for many types of animals, particularly in the deep sea. Discover Magazine, 19 June 2024 One explanation is that, on a geologic time scale, most of the severe logging and mining impacts were temporary, said John Maerz, a salamander expert at the University of Georgia. Benji Jones, Vox, 18 June 2024 Those spikes commemorate new geologic time periods across the Earth. Seth Borenstein, Los Angeles Times, 11 July 2023 The vote brought an end to a debate about whether to declare that our species had transformed the natural world so thoroughly since the 1950s as to have sent the planet into a new epoch of geologic time. Christopher Flavelle Ian C. Bates, New York Times, 2 Apr. 2024 See all Example Sentences for geologic time 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'geologic time.' 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

1861, in the meaning defined above

Time Traveler
The first known use of geologic time was in 1861

Dictionary Entries Near geologic time

Cite this Entry

“Geologic time.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geologic%20time. Accessed 7 Jul. 2024.

Kids Definition

geologic time

noun
: the long period of time marked by events in the earth's geological history
geologic time table

More from Merriam-Webster on geologic time

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