undercoat Edit
Noun
    seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion

undercoat Edit
Noun
    the first or preliminary coat of paint or size applied to a surface

undercoat Edit
Noun
    thick soft fur lying beneath the longer and coarser guard hair

undercoat Edit
Verb
    cover with a primer; apply a primer to