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geological timescale

British

noun

any division of geological time into chronological units, whether relative (with units in the correct temporal sequence) or absolute (with numerical ages attached)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"On a geological timescale, this is very rapid erosion."

From BBC

"On a geological timescale ice sheets have come and gone, but on a human timescale if we lose them we can basically consider them gone forever."

From Salon

"Our study is also working on the geological timescale in millions of years," he said.

From Science Daily

Movement of rivers, mountains, oceans and sediment nutrients at the geological timescale are the central drivers of Earth's biodiversity, new research published today in Nature has revealed.

From Science Daily

On a geological timescale, "very quickly" means in thousands to hundreds of thousands of years.

From Science Daily

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023