third mate

noun

1. the officer of a merchant vessel next in command beneath the second mate.

Example Sentences

Capt. Darrin Muenzberg and his third mate launched an investigation.

From Los Angeles Times

Cadet Sophie Scopazzi, 25, who wants to be a third mate on a deep-sea ship, pressed the school to eliminate gender-based policies regarding hair length, earring-wear and nail polish.

From Los Angeles Times

Coast Guard licenses for positions such as third mate on the bridge of a ship and third assistant engineer in the engine room.

From Los Angeles Times

Parra, 23, a junior who wants to be a third mate on a research ship, continues to process the trauma.

From Los Angeles Times

The ship’s pilot - licensed by Maryland and an expert in local conditions in the area - remained on the bridge along with the third mate, typically the most junior officer aboard, and a cadet still in training.

From Washington Times