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Related to frontogenesis: frontolysis
n. pl. fron·to·gen·e·ses (-sēz′)
Formation or intensification of a meteorological front.
(Physical Geography) meteorol the formation or development of a front through the meeting of air or water masses from different origins
the meeting of two masses of air, each with a different meteorological composition, thus forming a front, sometimes resulting in rain, snow, etc.See also: Weather