1) Chukka 2) Inning in polo 3) One of the periods of play 4) Part of a polo match 5) Period of play 6) Period of play in a polo game 7) Play 8) Playing period 9) Polo period 1) Chukka 
(from the article `polo`) ...to teammates, speed, and maneuvering, each team tries to score as the opponents try to prevent a score. A game consists of six periods of 7 12 ...
chukka noun one of six playing periods into which a polo match is divided
one of the periods of play.