traverse board (English, noun)
expansion: traverse board (plural traverse boards)
Senses:
topics: nautical
transport
glosses: A small board hung near the helmsman, having the points of the compass marked on it, and for each point as many holes as there are half hours in a watch. It was used for recording the courses made by the ship in each half hour, by putting a peg in the corresponding hole.
Forms:
form: traverse boards
tags: plural