underseal noun.
['ʌndǝsi:l] M20.[from UNDER- + SEAL noun2.](US proprietary name for a brand of) waterproofing material used as a protective coating on the underbodies of motor vehicles.
[TahlilGaran] English Dictionary ▲
underseal verb trans. ['ʌndǝsi:l] M20.[from UNDER- + SEAL verb1.]Coat (the underbody of a motor vehicle) with waterproof material, esp. to protect against rust.
[TahlilGaran] English Dictionary ▲