tangent galvanometer

noun

: a galvanometer consisting of a very small magnetic needle in the center of a large vertical circular coil of wire through which electric current is passed and whose plane is in the magnetic meridian with the intensity of the current being proportional to the tangent of the angle of deflection of the needle

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!