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excavation

Definition of excavation:

part of speech: noun

A hollow cavity or pit formed by digging out earth; the act of digging out earth.

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magnet

The loadstone, which has the property of attracting iron, and of pointing to the poles when freely suspended; a bar of steel, to which the properties of the loadstone are imparted by contact; any piece of iron rendered powerfully attractive by a galvanic current; any powerful attraction. ...

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