flat coat

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the first or preliminary coat of paint or size applied to a surface
• Syn:
ground, primer, priming, primer coat, priming coat, undercoat
• Derivationally related forms:
undercoat (for: undercoat), prime (for: primer), ground (for: ground)
• Hypernyms:
coat of paint
• Hyponyms:
couch