- Rocker arm
- Rocker Rock"er, n.
1. One who rocks; specifically, one who rocks a cradle.
[1913 Webster]
It was I, sir, said the rocker, who had the honor, some thirty years since, to attend on your highness in your infancy. --Fuller. [1913 Webster]
2. One of the curving pieces of wood or metal on which a cradle, chair, etc., rocks. [1913 Webster]
3. 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. [1913 Webster]
4. A play horse on rockers; a rocking-horse. [1913 Webster]
5. A chair mounted on rockers; a rocking-chair. [1913 Webster]
6. A skate with a curved blade, somewhat resembling in shape the rocker of a cradle. [1913 Webster]
7. (Mach.) Same as {Rock shaft}. [1913 Webster]
{Rocker arm} (Mach.), an arm borne by a rock shaft. [1913 Webster]
The Collaborative International Dictionary of English. 2000.