noun
also soli·fluxion |sōlə, |sälə+
( -s )
Etymology: Latin sol um ground, soil + -i- + fluction-, fluctio act of flowing, from fluctus (past participle of fluere to flow) + -ion-, -io -ion — more at fluid
: the slow creeping of wet soil and other saturated fragmental material down a slope resulting sometimes in the formation of small terraces : the selective movement of soil particles and rock waste in regions of perennially frozen ground by frost action and associated phenomena producing soil structures of various kinds and shapes — compare congeliturbation
• soli·fluctional “+ adjective