1. a person whose job is to seal seams or cracks in ships, boats, or other structures with caulking material
Usage: nautical; also spelled caulker or calker
2. a tool used to drive caulking material into seams or cracks
Usage: also called a caulking iron

Examples

• The shipyard hired an experienced caulker to repair the wooden hull.
• A skilled caulker can seal a boat's seams so tightly that no water leaks through.
• The caulker used a hammer and chisel to drive oakum into the gaps between planks.
• Before modern materials, every sailing ship needed a caulker on its crew.
• She worked as a caulker in the maritime industry for over twenty years.