gown

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A long loose flowing garment, such as a robe or nightgown.
• noun A long, usually formal dress for a woman.
• noun A robe or smock worn in operating rooms and other parts of hospitals as a guard against contamination.
• noun A distinctive outer robe worn on ceremonial occasions, as by scholars or clerics.
• noun The faculty and student body of a university.
• transitive verb To clothe (oneself or another) with a gown.

from The Century Dictionary.

• To invest with a gown; clothe or dress in a gown; hence, to impart the function represented by the gown to.
• To put on a gown.
• noun An outer garment, generally long and loose, of various shapes and uses.
• noun Same as dress, 2. [Dress is preferred for a garment cut to fit the person, the gown being more properly a loose garment hanging from the shoulders. Compare .]
• noun A loose garment worn in the house; a wrapper: as, a dressing-gown; a night-gown.
• noun A long and loose over-dress, of varying styles, worn distinctively on official occasions in Europe, and less commonly in America, by clergymen, judges, lawyers, and university professors and students; hence, the emblem of civil power or place, as opposed to the sword.
• noun The toga.

from the GNU version of the Collaborative International Dictionary of English.

• noun A loose, flowing upper garment.
• noun The ordinary outer dress of a woman.
• noun The official robe of certain professional men and scholars, as university students and officers, barristers, judges, etc.; hence, the dress of peace; the dress of civil officers, in distinction from military.
• noun A loose wrapper worn by gentlemen within doors; a dressing gown.
• noun Any sort of dress or garb.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A loose, flowing upper garment.
• noun The ordinary outer dress of a woman; as, a calico or silk gown.
• noun The official robe of certain professional men and scholars, as university students and officers, barristers, judges, etc.; hence, the dress of peace; the dress of civil officers, in distinction from military.
• noun The university community.
• noun A loose wrapper worn by gentlemen within doors; a dressing gown.
• noun Any sort of dress or garb.
• noun The robe worn by a surgeon.
• verb To dress in a gown, to don or garb with a gown.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the members of a university as distinguished from the other residents of the town in which the university is located
• noun a woman's dress, usually with a close-fitting bodice and a long flared skirt, often worn on formal occasions
• noun outerwear consisting of a long flowing garment used for official or ceremonial occasions
• noun lingerie consisting of a loose dress designed to be worn in bed by women
• noun protective garment worn by surgeons during operations
• verb dress in a gown