Train (clothing)
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In clothing, a train describes the long back portion of a skirt, overskirt, or dress that trails behind the wearer. It is a common part of a woman's court dress, formal evening gowns or wedding dress.
In the Roman Catholic Church the cappa magna (literally, "great cape"), a form of mantle, is a voluminous ecclesiastical vestment with a long train. Cardinals, bishops, and certain other honorary prelates are entitled to wear the cappa magna.