Meaning ofundercoatin English

Noun

1. a primer coat of paint (before topcoat); base layer
   The painter applied a thick undercoat to the wall before adding the final layer.
2. short hairs beneath an animal's main fur
   The cat's soft undercoat kept it warm during the cold winter months.
3. an indoor coat (worn under outerwear)
   She wore a warm undercoat under her business suit to stay cozy in the office.