each of a pair of small, thin, tapered sticks of wood, ivory, or plastic, held together in one hand and used as eating utensils especially by the Chinese and the Japanese.
Origin:
late 17th century: pidgin English, from chop 'quick' + stick1, translating Chinese dialect kuàizi, literally 'nimble ones'. Compare with chop-chop
chopstick in other Oxford dictionaries
Definition of chopstick in the US English dictionary