to fill or close seams or crevices of (a tank, window, etc.) in order to make watertight, airtight, etc.
to make (a vessel) watertight by filling the seams between the planks with oakum or other material driven snug.
to fill or close (a seam, joint, etc.), as in a boat.
to drive the edges of (plating) together to prevent leakage.
Also caulk·ing [kaw-king]. /ˈkɔ kɪŋ/. a material or substance used for caulking.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use caulk in a sentence
Each end is "caulked," that is, split longitudinally and turned up and down.
He speaks of circular craft, covered with skins and caulked with bitumen, and made on wooden frames.The Cradle of Mankind | W.A. Wigram
After this has been done, the center of the lead is caulked and the joint should be tight.
When cool, the lead should be set and then caulked around the pipe and around the hub.
The fittings and traps and pipe are caulked in place as fast as possible.
British Dictionary definitions for caulk
to stop up (cracks, crevices, etc) with a filler
nautical to pack (the seams) between the planks of the bottom of (a vessel) with waterproof material to prevent leakage
- caulker or calker, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012