underseal
verbEtymology From under- + seal.
1
To coat (the underbody or chassis of a vehicle) with underseal.
- Derived terms
- undersealed, undersealing
underseal
nounEtymology From under- + seal.
1
A thick, resilient coating applied to the underbody or chassis of an automobile to protect against damage from small stones, etc, which would rapidly chip ordinary paint and allowing rusting to begin.