radial gate

noun

: a device used for controlling the flow of water over spillways or into canals by having the upstream face curved in the form of an arc the center of which is at the center of the gate hinge

called also tainter gate

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!