chernozem

[chur-nuh-zem, chair-; Russian chyir-nuh-zyawm]
noun
a soil common in cool or temperate semiarid climates, very black and rich in humus and carbonates.

Origin:
1835–45; < Russian chernozëm, equivalent to chërn() black + -o- -o- + -zëm, variant, in compounds, of zemlyá earth, land; see humus

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World English Dictionary
chernozem or tschernosem (ˈtʃɜːnəʊˌzɛm)
 
n
a black soil, rich in humus and carbonates, in cool or temperate semiarid regions, as the grasslands of Russia
 
[from Russian, contraction of chernaya zemlya black earth]
 
tschernosem or tschernosem
 
n
 
[from Russian, contraction of chernaya zemlya black earth]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

chernozem
1842, from Rus. chernozem, lit. "black earth," from chernyl "black" + zemlya "earth, soil."
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Rye is grown farther north, in the less fertile non-chernozem zone.
Chernozem is very fertile and produces a high agricultural yield.
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