'Tam-o'-shanter' definitions:

Definition of 'tam-o'-shanter'

From: WordNet
noun
A woolen cap of Scottish origin [syn: tam, tam-o'-shanter, tammy]

Definition of 'Tam-o'-shanter'

From: GCIDE
  • Tam-o'-shanter \Tam`-o'-shan"ter\, n. [So named after Tam o'Shanter, a character in Burns's poem of the same name.] A kind of Scotch cap of wool, worsted, or the like, having a round, flattish top much wider than the band which fits the head, and usually having a tassel in the center. [Webster 1913 Suppl.]