simple past tense and past participle of coat
"The chef coated the chicken in flour before frying it."
In plain English: To coat something means to cover its surface with a layer of another substance.
"The road was coated with ice after last night's freeze."
having a coating; covered with an outer layer or film; often used in combination
"coated paper has a smooth polished coating especially suitable for halftone printing"
"sugar-coated pills"
having or dressed in a coat
"The old house was coated with thick layers of soot from the factory smokestacks."
Covered with a thin layer.
"The apples were coated in sugar before being baked into a pie."
In plain English: Coated means having something spread over its surface to protect it or make it slippery.
"The wet road was coated in black tar after the storm passed."