se ‧ lec ‧ tor AC /səˈlektə, sɪˈlektə $ -ər/ BrE AmE noun [countable]
[ Word Family: noun : ↑ selection , ↑ selector , ↑ selectivity ; verb : ↑ select ; adverb : ↑ selectively ; adjective : ↑ selective ]
1 . British English a member of a committee that chooses the best people for something such as a sports team
2 . technical a piece of equipment that helps you find the right thing, for example the correct ↑ gear in a car