Meaning of sidehill plough in English:
sidehill plough
noun
(US sidehill plow)
US A plough that can be made to throw the furrow slice to either one side or the other (e.g. downhill when the plough is moving across a slope), regardless of the direction of the plough across the slope.
Also called a turnwrest plough and a swivel plough.
Origin
Early 19th century; earliest use found in New England Farmer.
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