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subsoil

[ suhb-soil ]

Phonetic (Standard)IPA

noun

the bed or stratum of earth or earthy material immediately under the surface soil.

subsoil

/ ˈ��ʌ��ˌ��ɔɪ�� /

1. Also calledundersoil the layer of soil beneath the surface soil and overlying the bedrock
2. ( as modifier )
  a subsoil plough

tr to plough (land) to a depth below the normal ploughing level and so break up the subsoil

subsoil

In an ABC soil, the B horizon. The term was formerly used to mean the layer of earth below the humus or surface soil.

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Origin of subsoil¹

First recorded in 1790–1800; sub- + soil ¹

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Examples have not been reviewed.

After scraping you’ll likely be left with subsoil, layers of clay or sand, that lack the life-giving nutrients plants require.

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Excavators are then used to dig out the top soil and subsoil.

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Taiwan’s religious diversity and vitality forms a kind of subsoil of the self-governed island’s identity and values.

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If you dig a burial pit into the subsoil, when you take the dead out and backfill it, the soil will be a different color.

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This man’s house is located in a region with dense clay subsoil.

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