Coating definition

(1) The work of applying something

"The doctor prescribed a topical application of iodine"

"A complete bleach requires several applications"

"The surface was ready for a coating of paint";

(2) A thin layer covering something

"A second coat of paint"

(3) A heavy fabric suitable for coats

(4) A decorative texture or appearance of a surface (or the substance that gives it that appearance)

"The boat had a metallic finish"

"He applied a coat of a clear finish"

"When the finish is too thin it is difficult to apply evenly"