technical and operational definition of eraser
Technical definition of eraser
Technical definition of eraser
Eraser,piece of rubber or other material used to rub out marks made by ink, pencil, or chalk. ... The modern eraser is usually a mixture of an abrasive such as fine pumice, a rubbery matrix such as synthetic rubber or vinyl, and other ingredients.
Operational Definition of eraser
a device, as a piece of rubber or cloth, for erasing marks made with pen, pencil, chalk, etc
