CASTER

noun Date: 14th century one that casts, 2. (or castor) a usually silver table vessel with a perforated top for sprinkling a seasoning (as sugar or spice), a usually revolving metal stand bearing condiment containers (as cruets, mustard pot, and often shakers) for table use ; a cruet stand, any of a set of wheels or rotating balls mounted in a swivel frame and used for the support and movement of furniture, trucks, and portable equipment, the slight usually backward tilt from vertical of the axis of the steering mechanism of an automobile for giving directional stability to the front wheels