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