undercoat

Noun

• thick soft fur lying beneath the longer and coarser guard hair

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

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

Verb

• cover with a primer; apply a primer to

Related words

• Synonyms: 
  underfur , flat coat , ground , primer , priming , primer coat , priming coat , underseal , prime