Undercoat

//ˈʌndɚˌkoʊt// noun, verb

noun, verb ·Moderate ·College level

Definitions

Noun
  1. 1
    A layer of short hairs underneath the longer ones of an animal's fur.
  2. 2
    thick soft fur lying beneath the longer and coarser guard hair wordnet
  3. 3
    A coat of paint or other material applied onto a surface before that of a topcoat; sometimes, a coloured primer.

    "The conversion process is carried out by Progress Rail at Longport, from where they are dispatched in undercoat to Eastleigh for final painting."

  4. 4
    the first or preliminary coat of paint or size applied to a surface wordnet
  5. 5
    A coat for wearing indoors, under an overcoat. obsolete
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  1. 6
    seal consisting of a coating of a tar or rubberlike material on the underside of a motor vehicle to retard corrosion wordnet
Verb
  1. 1
    To apply an undercoat to. transitive
  2. 2
    cover with a primer; apply a primer to wordnet

Synonyms

All synonyms
flat coatbedaubbedizenbegildbesmearbutter

Example

More examples

"Whether you first paint this wood with primer or undercoat, when you add this topcoat, you'll end up with the same result."

Etymology

From under- + coat.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.