a person or thing that selects something, in particular:
British a person appointed to select a representative team in a sport.
(also selecta)British informal a disc jockey (especially in the context of reggae and UK garage music):hot new selector Billy Slaughter is taking the sound of dancehall from strength to strength
a device for selecting a particular gear or other setting of a machine or device.
Spelling help
The ending of selector is spelled -or.
selector in other Oxford dictionaries
Definition of selector in the US English dictionary