pirouette

pirouette
/ˌpɪruˈet; ˌpɪrʊ`ɛt/ n
rapid turn or spin made by a ballet-dancer while balanced on the point of the toe or the ball of the foot （跳芭蕾舞者的）单足旋转. pirouette, v [I]
perform a pirouette or pirouettes （跳芭蕾舞时）用单足旋转.

牛津英汉双解词典