lithosol

[lith-uh-sawl, -sol]
noun
a group of shallow soils lacking well-defined horizons, especially an entisol consisting of partially weathered rock fragments, usually on steep slopes.

Origin:
1935–40; litho- + -sol

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World English Dictionary
lithosol (ˈlɪθəˌsɒl)
 
n
chiefly (US) a type of azonal soil consisting chiefly of unweathered or partly weathered rock fragments, usually found on steep slopes
 
[C20: from litho- + Latin solum soil]

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Example sentences
Sensitive lithosol habitat would be potentially impacted in areas where shrub-steppe is disturbed.
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