• noun a layer of metal, coal or other substance that occurs in the ground
  • noun a quantity of material moved from one place on the Earth’s surface to another by natural agents such as wind or water
  • noun a thin layer or coating on an inner or outer surface
  • noun a fee that is added to the price of a product and refunded when the used product is returned for recycling
  • verb to coat a surface with a thin layer of a substance
  • The concentration of matter at a specific location, or on a given surface. For instance, the electrochemical deposition of two or more metallic elements on a substrate.

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