n.
Pronunciation: ' kas-t ə r
Function: noun
Date: 14th century
1 : one that casts especially : a machine that casts type
2 or cas · tor \ -t ə r \ a : a usually silver table vessel with a perforated top for sprinkling a seasoning (as sugar or spice) b : a usually revolving metal stand bearing condiment containers (as cruets, mustard pot, and often shakers) for table use : a cruet stand
3 : 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
4 : 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