ballroom dancing noun
Learner's definition of BALLROOM DANCING
[noncount]
: a style of dancing in which couples hold each other and use set moves to perform different kinds of formal dances (such as the polka, the tango, or the waltz)交际舞,交谊舞(如波尔卡、探戈、华尔兹)
— ballroom dance
noun, plural ballroom dances [count]