— morainal, morainic , adj.
/meuh rayn"/ , n.
1. a ridge, mound, or irregular mass of unstratified glacial drift, chiefly boulders, gravel, sand, and clay.
2. a deposit of such material left on the ground by a glacier.
[ 1780-90; morêna rise in the ground along the lower edge of a sloping field, equiv. to mour ( o ) mound, accumulation of earth ( murr- mound, elevation, appar. pre-L) + -ena suffix of landforms, prob. of pre-L orig.; cf. Upper It (Piedmont) morena heap of organic detritus, Sp moreña heap of stones, moraine ]