Used chiefly in technical contexts to mean 'apply an additional coat or covering to a surface.'
Definitionen
To apply an additional coat or covering to (a surface, object, or material). After the primer dries, overcoat the wall with two layers of eggshell paint.
Attributive use, as in 'overcoat fabric', describing something related to overcoats.
Definitionen
Relating to or intended for use in overcoats. The tailor recommended a heavy overcoat cloth for winter.