Underlayer

noun, verb

Definitions

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

Etymology

Etymology 1

From under- + layer.

Etymology 2

From under- + layer.

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