yedoma


ye·do·ma

Y5013950 (yĕ′də-mə, yə-dō′-)n. A type of permafrost consisting primarily of loess and organic material, believed to sequester large amounts of carbon.
[Archaic and regional Russian yedoma, backwoods, a place that lacks reindeer, yedoma, of Nenets origin; akin to Nenets yada, on foot (since the Nenets use reindeer to draw sledges and without them go on foot).]