wheel·er (w??l?r, hw??-)n.1. One that wheels.2. A thing that moves on or is equipped with wheels or a wheel. Often used in combination: a three-wheeler; a paddle-wheeler.3. A wheel horse.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.wheeler (?wi?l?) n1. (Automotive Engineering) Also called: wheelhorse a horse or other draught animal nearest the wheel2. (Mechanical Engineering) (in combination) something equipped with a specified sort or number of wheels: a three-wheeler. 3. a person or thing that wheelsWheeler (?wi?l?) n1. (Biography) John Archibald. 1911?2008, US physicist, noted for his work on nuclear fission and the development (1949?51) of the hydrogen bomb, also for his work on unified field theory2. (Biography) Sir (Robert Eric) Mortimer. 1890?1976, Scottish archaeologist, who did much to increase public interest in archaeology. He is noted esp for his excavations at Mohenjo-Daro and Harappa in the Indus Valley and at Maiden Castle in DorsetCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014wheel?er (??wi l?r, ?wi-) n. 1. a person or thing that wheels. 2. a person who makes wheels; wheelwright. 3. something provided with a wheel or wheels (usu. used in combination): a four-wheeler. 4. wheel horse (def. 1). [1350?1400] Whee?ler (??wi l?r, ?wi-) n. William Almon, 1819?87, vice president of the U.S. 1877?81. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.