underlayer
noun 3verb 1
Definitions
noun
1
A layer that is below another layer.
2
A perpendicular shaft sunk to cut the lode at any required depth.
3
One who underlays.
verb
1
To form a layer beneath another
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noun
A layer that is below another layer.
A perpendicular shaft sunk to cut the lode at any required depth.
One who underlays.
verb
To form a layer beneath another