a short plaid coat made of made of thick woolen material
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a thick plaid blanket formerly used in the northwestern United States
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a flat-bottomed boat used on upper Great Lakes
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a heavy woolen cloth heavily napped and felted, often with a plaid design
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Mackinaw blanket \Mack"i*naw blan"ket\, Mackinaw \Mack"i*naw\ [From Mackinac, the State of Michigan, where blankets and other stores were distributed to the Indians.] 1. A thick blanket formerly in common use in the western part of the United States. [WordNet sense 2]
2. a heavy woolen cloth heavily napped and felted, often with a plaid design. [WordNet sense 4] [WordNet 1.5]
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 \Mack"i*naw\, Mackinaw coat \Mack"i*naw coat\ A short, heavy, double-breasted plaid coat, the design of which is large and striking. [Local, U. S.] [Webster 1913 Suppl.]