Meaning of Mackinac

Mack•i•nac

Pronunciation: (mak'u-nô"), [key]
— n.
  1. a strait between the peninsulas of Upper Michigan and Lower Michigan, connecting lakes Huron and Michigan.
  2. an island in Lake Huron at the entrance of this strait. 517; 3 mi. (5 km) long.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.