A metallic runner with a frame shaped to fit the sole of a
shoe, – made to be fastened under the foot, and used for moving
rapidly on ice.

To move on skates.

Any one of numerous species of large, flat elasmobranch
fishes of the genus Raia, having a long, slender tail, terminated by a
small caudal fin. The pectoral fins, which are large and broad and
united to the sides of the body and head, give a somewhat rhombic form
to these fishes. The skin is more or less spinose.