pak choi /ˌpæk ˈtʃɔɪ $ ˌpɑːk-/ BrE AmE British English , bok choy American English noun [uncountable]
[ Date: 1900-2000 ; Language: Chinese ; Origin: paak ts'oi 'white vegetable' ]
a green vegetable similar to ↑ cabbage that is used in Chinese cooking