maneuvering board

noun

: a printed compass rose with polar coordinates that is used together with parallel rulers and dividers to solve problems of relative movement of ships or airplanes such as arise in changing station in formation or mooring

called also mooring board

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!