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单词 water sill
释义

Definition of water sill in English:

water sill

noun
Geology

  • 1A horizontal stratum of porous or poorly consolidated, often waterlogged, sandstone or other sedimentary rock; specifically (with the) a formation of this kind in the northern Pennines in England.

  • 2A thin layer of water trapped between strata.

Origin

Early 19th century; earliest use found in Transactions of the Geological Society.

Definition of water sill in US English:

water sill

noun
Geology

  • 1A horizontal stratum of porous or poorly consolidated, often waterlogged, sandstone or other sedimentary rock; specifically (with the) a formation of this kind in the northern Pennines in England.

  • 2A thin layer of water trapped between strata.

Origin

Early 19th century; earliest use found in Transactions of the Geological Society.
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更新时间：2025/6/19 2:27:44