curling stone

noun

a large, heavy, ellipsoidal stone or a similar object made of iron, usually having one rough side and one smooth side with a hole in the center of each for screwing in a handle by which the stone is released, for use in the game of curling.

Origin of curling stone

First recorded in 1610–20

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018