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countable and uncountable, plural topsoils
The upper layer of soil, typically most fertile and easiest to start new plants in. quotations examples
Without urgent action, the majority of the Earth’s topsoil could be severely degraded or lost before the end of this century. In China, topsoil is being lost fifty-seven times faster than this natural replacement process; in Europe seventeen times faster.
2013, Al Gore, “Outgrowth”, in The Future: Six Drivers of Global Change, New York: Random House, page 183
third-person singular simple present topsoils, present participle topsoiling, simple past and past participle topsoiled
(transitive) To remove the topsoil from. examples