Geologic

[jee-uh-loj-ik] /ˌdʒi əˈlɒdʒ ɪk/

adjective
1.
of, relating to, or based on .
adj.

1799, from geology + -ic. Geologic time is recorded from 1861.

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Geological
[jee-uh-loj-ik] /ˌdʒi əˈlɒdʒ ɪk/ adjective 1. of, relating to, or based on . adj. 1795, from geology + -ical. Related: Geologically. adj. 1799, from geology + -ic. Geologic time is recorded from 1861.
Geologically
[jee-uh-loj-ik] /ˌdʒi əˈlɒdʒ ɪk/ adjective 1. of, relating to, or based on . adj. 1799, from geology + -ic. Geologic time is recorded from 1861.
Geological-survey
noun 1. U.S. Government. a division of the Department of the Interior, created in 1879, that studies the nation’s water and mineral resources, makes topographic surveys, and classifies and leases public lands. 2. (lowercase) a systematic investigation of the geology of an area. noun 1. a government-sponsored organization working in the field of geology, such […]

Geological timescale
noun 1. any division of geological time into chronological units, whether relative (with units in the correct temporal sequence) or absolute (with numerical ages attached)
Geologic-time
noun 1. the succession of eras, periods, and epochs as considered in historical geology. geologic time (jē’ə-lŏj’ĭk) The period of time covering the formation and development of the Earth, from about 4.6 billion years ago to today.