Caulk

Alternative forms

• calk

Origin

From Old Northern French cauquer, from Late Latin calicō.

Full definition of caulk

Noun

1. Caulking.
2. 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

1. (nautical) To drive oakum into the seams of a ship's wooden deck or hull to make it watertight.
2. To apply caulking to joints, cracks, or a juncture of different materials.