PotawatomiPronunciation: /ˌpɒtəˈwɒtəmi/Definition of Potawatomi noun (plural same or Potawatomis) 1a member of an American Indian people inhabiting the Great Lakes region, principally in Michigan and Wisconsin. 2 [mass noun] the Algonquian language of the Potawatomi, now with few speakers. adjective relating to the Potawatomi or their language. Origin:the name in OjibwaPotawatomi in other Oxford dictionaries Definition of Potawatomi in the US English dictionary