geophysics

noun

geo·​phys·​ics ˌjē-ə-ˈfi-ziks How to pronounce geophysics (audio)
plural in form but singular or plural in construction
: a branch of earth science dealing with the physical processes and phenomena occurring especially in the earth and in its vicinity
geophysical adjective
geophysically adverb
geophysicist noun

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Geophysics applies the principles of physics to the study of the Earth. It deals with such things as the movement of the Earth's crust and the temperatures of its interior. Another subject is the behavior of the still-mysterious geomagnetic field. Some geophysicists seek out deposits of ores or petroleum; others specialize in earthquakes; still others study the water beneath the Earth's surface, where it collects and how it flows.

Examples of geophysics in a Sentence

Recent Examples on the Web
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Decoding what is going on in the center of the Earth is one of the most challenging problems in geophysics. Simon Redfern, Discover Magazine, 10 Feb. 2015 The scientists used computer models to simulate the geophysics of Mars, and found that a plume some 95–285 degrees Celsius hotter and slightly less dense than the surrounding mantle centered almost directly under the fossae would do the trick. Phil Plait, Scientific American, 5 Jan. 2023 The glacier is around 1/10 of a square mile — or between 50 and 60 acres, said Matthew Sturm, a geophysics professor with the University of Alaska Fairbanks’ Geophysical Institute and the leader of its Snow-Ice-Permafrost Group. Alena Naiden, Anchorage Daily News, 27 Dec. 2022 Handmade Vodka, is a former Longhorn who received degrees in geology and geophysics from the university. Dallas News, 31 Jan. 2022 See all Example Sentences for geophysics 

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1889, in the meaning defined above

Time Traveler
The first known use of geophysics was circa 1889

Dictionary Entries Near geophysics

Cite this Entry

“Geophysics.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geophysics. Accessed 24 Dec. 2024.

Kids Definition

geophysics

noun
geo·​phys·​ics ˌjē-ə-ˈfiz-iks How to pronounce geophysics (audio)
: a science that deals with the physical processes occurring in or near the earth
geophysical adjective
geophysicist noun

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