noun. ['ˈkɔkɪŋ'] a waterproof filler and sealant that is used in building and repair to make watertight.
1. Verb, gerund or present participle Pull the rest of the caulking out of the joint between the window frame and your house. 2. Noun, singular or mass Slip the edge of your knife between the old caulking and the window frame.
