Definitions

1. noun

One who or that which closes the caul or opening of a ship’s hull with oakum or other material, or one who caulked the seams of a ship.

“The caulker was responsible for making sure the ship’s hull was watertight.”

2. noun

A person whose job is to caulk or seal joints and seams.

“The caulker used a specialized tool to fill the gaps between the old stones.”