or ep·i·rog·e·ny


noun Geology.

vertical or tilting movement of the earth's crust, generally affecting broad areas of a continent.

Also e·pei·ro·gen·e·sis [ih-pahy-roh-jen-uh-sis] /ɪˌpaɪ roʊˈdʒɛn ə sɪs/.

Origin of epeirogeny

1885–90; < Greek ḗpeiro(s) mainland, continent + -geny
Related formse·pei·ro·gen·ic, e·pi·ro·gen·ic [ih-pahy-roh-jen-ik] /ɪˌpaɪ roʊˈdʒɛn ɪk/, adjectivee·pei·ro·ge·net·ic, e·pi·ro·ge·net·ic [ih-pahy-roh-juh-net-ik] /ɪˌpaɪ roʊ dʒəˈnɛt ɪk/ adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for epirogeny



a variant spelling of epeirogeny
Derived Formsepirogenic (ɪˌpaɪrəʊˈdʒɛnɪk) or epirogenetic (ɪˌpaɪrəʊdʒɪˈnɛtɪk), adjective


epeirogenesis (ɪˌpaɪrəʊˈdʒɛnɪsɪs)


the formation and submergence of continents by broad relatively slow displacements of the earth's crustAlso called: epirogeny
Derived Formsepeirogenic (ɪˌpaɪrəʊˈdʒɛnɪk) or epeirogenetic (ɪˌpaɪrəʊdʒɪˈnɛtɪk), adjective

Word Origin for epeirogeny

C19: from Greek ēpeiros continent + -geny
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

Science definitions for epirogeny



Uplift or depression of the Earth's crust, affecting large areas of land or ocean bottom. Basins and plateaus are often formed as the result of epeirogeny. Epeirogeny differs from orogeny in that it affects larger regions of the Earth's crust and is not as frequently associated with folding and faulting of rocks.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.