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sierozem

American  
[sahy-er-uh-zem, see-er-uh-zhawm] / saɪˈɛr əˌzɛm, siˌɛr əˈʒɔm /

noun

  1. any of a group of calcareous, brownish gray soils based in a carbonate or hardpan layer, found in arid climates.


Etymology

Origin of sierozem

First recorded in 1930–35; from Russian serozëm “gray earth,” from séryĭ “gray” + -o- linking vowel + zëm, variant, in compounds, of zemlyá “earth, land”; humus ( def. )