Source : Webster's Revised Unabridged Dictionary (1913)

Micmacs \Mic"macs\, n. pl.; sing. {Micmac}. (Ethnol.)
   A tribe of Indians inhabiting Nova Scotia and New Brunswick.
   [Written also {Mikmaks}.]

Source : WordNet®

Micmac
     n 1: a member of the Algonquian people formerly inhabiting the
          Maritime Provinces of Canada
     2: the Algonquian language of the Micmac people