chukka
/ˈtʃʌkə/( <美> 亦作chukker)
noun
- each of a number of periods (typically six) into which play in a game of polo is divided. A chukka lasts 7½ minutes.（马球的）一回, 一局（常为6局, 每局长7分30秒）。
词源
late 19th cent.: from Hindi cakkar, from Sanskrit cakra 'circle or wheel'.