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[fruhn-tuh-jen-uh-sis] /ˌfrʌn təˈdʒɛn ə sɪs/
noun, Meteorology
the formation or increase of a front or frontal zone.
Compare frontolysis.
Origin of frontogenesis
1930-35; fronto- + -genesis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for frontogenesis
  • Strong frontogenesis is often occurring within this area.
  • With a strong upper level trough and mid level frontogenesis, forcing was definitely not lacking with this event.
  • Note that the maximum frontogenesis is within the jet entrance region.
  • Note the enhanced axis of frontogenesis near the coast where higher values of snow were observed.
  • frontogenesis produces a mesoscale direct thermal circulation that is sloped with height toward cold air.
British Dictionary definitions for frontogenesis


(meteorol) the formation or development of a front through the meeting of air or water masses from different origins
Derived Forms
frontogenetic (ˌfrʌntəʊdʒəˈnɛtɪk) adjective
frontogenetically, adverb
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
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frontogenesis in Science
The formation or intensification of a meteorological front caused by an increase in the horizontal thermal gradient (the difference in temperature of adjacent air masses) over time. Compare frontolysis.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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