adjective de·scen·sion·al \-chənəl, -chnəl\

Definition of descensional

  1. 1 :  relating to descension :  moving or directed downward

  2. 2 :  involving or produced by processes of disintegration of rock and aggregation of particles in beds sand produced by the disintegration of granite is a descensional deposit

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a rounded knoll or a ridge of ice

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