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单词 outscour
释义

outscourn.

Origin: Formed within English, by derivation. Etymons: out- prefix, scour n.2
Etymology: < out- prefix + scour n.2, after to scour out (see scour v.2 5a).
Obsolete. rare.
The action of scouring out a channel.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > cutting channel or hole
stream-cutting1626
gorging1833
outscour1883
incision1906
gullying1928
1883 G. K. Gilbert in Nature 18 Jan. 261/2 The natural rate of denudation by means of the outscour of rivers.
This entry has been updated (OED Third Edition, December 2004; most recently modified version published online June 2018).
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n.1883
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