tam-o'-shan•ter
(ˈtæm əˌʃæn tər)
n. a round, flat cap of Scottish origin, usu. of wool, with a pompom at its center.
[1880–85; after the hero of Tam O'Shanter (1791), poem by Robert Burns]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.