Definition of "caulk"
- noun
Caulking.
A composition of vehicle and pigment used at ambient temperatures for filling/sealing joints or junctures, that remains elastic for an extended period of time after application.
- verb
To drive oakum into the seams of a ship's wooden deck or hull to make it watertight.
To apply caulking to joints, cracks, or a juncture of different materials.
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