geologic time


noun

the succession of eras, periods, and epochs as considered in historical geology.

Origin of geologic time

First recorded in 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

geologic time in Science

geologic time

[jē′ə-lŏjĭk]

The period of time covering the formation and development of the Earth, from about 4.6 billion years ago to today.
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