undercoat

Definitions of undercoat in various dictionaries:

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

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

noun - thick soft fur lying beneath the longer and coarser guard hair

verb - cover with a primer

A coat worn beneath another coat.

A covering of short hairs lying underneath the longer outer hairs of an animal’s coat.

Also undercoating (-kotVng).

A coat of sealing material applied to a surface before the outer coats, as of paint, are applied.

The sealing material used for this purpose.

A tarlike substance sprayed on the underside of a vehicle to prevent rusting.