stocker Syllabification: (stock·er)Pronunciation: /ˈstäkər/Definition of stocker noun 1a farm animal, typically a young steer or heifer, destined for slaughter but kept until matured or fattened. 2a person whose job is to fill the shelves of a store or supermarket with merchandise. 3 informal a stock car. stocker in other Oxford dictionaries Definition of stocker in the British & World English dictionary