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geodynamics

[jee-oh-dahy-nam-iks]
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noun
  1. (used with a singular verb) the science dealing with dynamic processes or forces within the earth.
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Origin of geodynamics

First recorded in 1880–85; geo- + dynamics
Related formsge·o·dy·nam·ic, ge·o·dy·nam·i·cal, adjectivege·o·dy·nam·i·cist [jee-oh-dahy-nam-uh-sist] /ˌdʒi oʊ daɪˈnæm ə sɪst/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for geodynamics

geodynamics

noun
  1. (functioning as singular) the branch of geology concerned with the forces and processes, esp large-scale, of the earth's interior, particularly as regards their effects on the crust or lithosphere
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Derived Formsgeodynamic, adjectivegeodynamicist, noun
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