danger angle

noun

: the angle between two known points as observed from a point marking the limit of safe approach of a ship to a reef, shoal, or other obstruction which can then be passed safely by keeping the known points at an angle, as observed from the ship in her course, greater or less than the danger angle

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!