undercoat

"coatin coat

undercoat n.

大衣內的上衣, 絨毛, 內層油漆

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