ROLLER

I. noun Date: 13th century 1. a revolving cylinder over or on which something is moved or which is used to press, shape, spread, or smooth something, a cylinder or rod on which something (as a shade) is rolled up, 2. a long heavy ocean wave, tumbler 1b, one that rolls or performs a rolling operation, a slowly rolling ground ball, II. noun see: roll Date: 1678 any of various mostly brightly colored nonpasserine Old World birds (family Coraciidae) that perform rolling aerial dives during courtship displays, a canary having a song in which the notes are soft and run together