American Heritage® Dictionary of the English Language, Fourth Edition
- n. Soil below the ground surface.
Century Dictionary and Cyclopedia
- n. Soil beneath the surface; subsoil.
GNU Webster's 1913
- n. The soil beneath the surface; understratum; subsoil.
- n. the layer of soil between the topsoil and bedrock
“But for a thwarting stubborn undersoil -- a root, a rock -- Akeley was not killed instantly but remained between the tusks, holding on for bitter life.”
“Blackpool have suggested that their game against Liverpool is in doubt as, much to the irritation of the Premier League, they did not invest a portion of the windfall that they secured on promotion from the Championship last May in undersoil heating.”
“We have rich lands, a richer undersoil, unharnessed power in our rivers, falls and forests; our lakes and rivers are also rich in natural resources of all kind.”
“Fortunately the undersoil was stiff, the sides of the trenches could be cut quite perpendicular and in fine weather there was slight risk of the under-cutting causing subsidences.”
“The consolidating parties had a very stiff job to face, as these trenches had been continually bombarded for some months, with the result that there was a large amount of broken earth to be cleared away before reaching hard undersoil.”
“The undersoil in the valleys 6 miles north of Pt. Hope, Ont. is not favorable, not only for English walnuts but even for native black walnuts, though very favorable to hickories.”
“A net on the undersoil, which lies passive beneath their thrall.”
“They are summer-cultivated crops, and the clean culture that has been given them renders the surface soil mellow and the undersoil firm and compact.”
“The rain filters and impregnates the soil, but not being able to soak beyond a certain depth, on account of the volcanic rocks of the undersoil, forms a small stratum always met with at a certain depth.”
“Warm as the weather had been at Fort Grey, the night was bitterly cold, with the wind from the S.S.E. We left this, our first well, at early dawn, riding across a continuation of the same grassy and sandy land as that we had journeyed over the day before, only that it had many bare patches upon it full of water, the undersoil being a red clay.”
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