underseal

1 8.1

A thick layer of tar or rubber under a car that protects it from rust

noun
/ˈʌndərˌsiːl/

: protección inferior

It's important to check the underseal for damage every few years.

Examples

Regular underseal can extend your vehicle's life in harsh weather conditions.
The mechanic applied a fresh coat of underseal to the car.
The mechanic applied a fresh layer of underseal to the car to prevent rust.
Make sure the underseal is intact before winter.
The mechanic applied a fresh layer of underseal to the underside of the truck to prevent rusting.
To protect the car from corrosion, it is essential to use underseal after a thorough wash.
He inspected the underseal on his vehicle to ensure it was still effective against winter salt.

Synonyms

undercoat

vsunderseal

Specialized

5.8

A protective layer of tar or rubber applied under a car to stop rust

is the identical concept but uses a different word form

How Protective

rustproofing

1 3.5

underseal

1 8.1

undercoat

Specialized

5.8

paint

469 1.0

Surface Forms

underseal singular

underseals plural

Morphology

underseal = seal (semi-transparent) = under + seal

While 'under' and 'seal' are clear, the specific meaning of a protective coating for vehicles is specialized and not directly derivable from the components.

Etymology

The word underseal comes from under 'below' and seal meaning 'to close or protect'. An underseal is the protective coating put on the bottom of a car to 'seal' it from water, salt, and dirt, so it helps stop rust.