English

Definition of castor noun from the Oxford Advanced Learner's Dictionary

 

castor

 noun
(British English) (North American English caster) noun
BrE BrE//ˈkɑːstə(r)//
 
; NAmE NAmE//ˈkæstər//
 
 
jump to other results
one of the small wheels fixed to the bottom of a piece of furniture so that it can be moved easily Word Origin late 17th cent. relating to a small container with holes in the top used for sprinkling: originally a variant of caster, in the general sense ‘something that casts’.