Ballroom dance refers to a set of partner dances, which are enjoyed both socially and competitively around the world. Because of its performance and entertainment aspects, ballroom dance is also widely enjoyed on stage, film, and television.
Ballroom dance may refer, at its widest, to almost any type of social dancing as recreation. However, with the emergence of dancesport in modern times, the term has become narrower in scope. It usually refers to the International Standard and International Latin style dances.
Explanation supplied courtesy of http://en.wikipedia.org/