undercoat

noun

  1. 1

    thick soft fur lying beneath the longer and coarser guard hair

  2. 2

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

  3. 3

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

verb

  1. 1

    cover with a primer; apply a primer to

Synonyms

Also useful for “undercoat”:Unscrambler