Definition of rocker

• n. - One who rocks; specifically, one who rocks a cradle.
• n. - One of the curving pieces of wood or metal on which a cradle, chair, etc., rocks.
• n. - Any implement or machine working with a rocking motion, as a trough mounted on rockers for separating gold dust from gravel, etc., by agitation in water.
• n. - A play horse on rockers; a rocking-horse.
• n. - A chair mounted on rockers; a rocking-chair.
• n. - A skate with a curved blade, somewhat resembling in shape the rocker of a cradle.
• n. - Same as Rock shaft.