Source : Webster's Revised Unabridged Dictionary (1913)

Kickapoos \Kick`a*poos"\, n. pl.; sing. {Kickapoo}. (Ethnol.)
   A tribe of Indians which formerly occupied the region of
   Northern Illinois, allied in language to the Sacs and Foxes.

Source : WordNet®

Kickapoo
     n 1: a member of the Algonquian people formerly inhabiting
          southern Wisconsin and northern Illinois
     2: the Algonquian language of the Kickapoo people