Definitions

1. noun

A member of a team responsible for loading and firing the guns of a warship, especially a battleship.

“The battleship had a crew of skilled chainsmen who worked together to fire its main guns.”

2. noun

A person who is attached to a ship’s anchor or cable and helps to manage it while the ship is in port or at anchor.

“The harbor was filled with ships and their crew members, including the chainsmen who kept the vessels secure.”