the formation or increase of a front or frontal zone.
Origin of frontogenesis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
meteorol the formation or development of a front through the meeting of air or water masses from different origins
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
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.
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