'Mackinaw boat' definitions:

Definition of 'Mackinaw boat'

(from WordNet)
noun
A flat-bottomed boat used on upper Great Lakes [syn: mackinaw, Mackinaw boat]

Definition of 'Mackinaw boat'

From: GCIDE
  • Mackinaw \Mack"i*naw\, Mackinaw boat \Mack"i*naw boat\ A flat-bottomed boat with a pointed prow and square stern, using oars or sails or both, used esp. on the upper Great Lakes and their tributaries. [Webster 1913 Suppl.] Mackinaw