Undercoat

n.	1.	A coat worn under another; a light coat, as distinguished from an overcoat, or a greatcoat.
	2.	A growth of short hair or fur partially concealed by a longer growth; as, a dog's undercoat.

Noun	1.	undercoat - seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion Synonyms: underseal
	2.	undercoat - the first or preliminary coat of paint or size applied to a surface Synonyms: flat coat, primer coat, priming coat, primer, priming, ground
	3.	undercoat - thick soft fur lying beneath the longer and coarser guard hair Synonyms: underfur
Verb	1.	undercoat - cover with a primer; apply a primer to Synonyms: prime, ground

chromogen, coat, coat of paint, coating, color, color filter, color gelatin, colorant, coloring, dead-color, distemper, drier, dye, dyestuff, exterior paint, flat coat, flat wash, floor enamel, ground, interior paint, medium, opaque color, paint, pigment, prime coat, primer, priming, stain, tempera, thinner, tinction, tincture, transparent color, turpentine, turps, undercoating, vehicle, wash, wash coat