To·ho·no O’o·dham (t?-h??n? ô??-däm, ô?däm)n. pl. Tohono O’odham or Tohono O’o·dhams See O’odham.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.