red deern. A large reddish-brown or grayish deer (Cervus elaphus) of Eurasia and North Africa, having long branching antlers in the male. The closely related North American elk is sometimes considered a subspecies of the red deer.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.red deer n (Animals) a large deer, Cervus elaphus, formerly widely distributed in the woodlands of Europe and Asia. The coat is reddish-brown in summer and the short tail is surrounded by a patch of light-coloured hair Red Deer n 1. (Placename) a town in S Alberta on the Red Deer River: trade centre for mixed farming, dairying region, and natural gas processing. Pop: 67 707 (2001) 2. (Placename) a river in W Canada, in SW Alberta, flowing southeast into the South Saskatchewan River. Length: about 620 km (385 miles) 3. (Placename) a river in W Canada, flowing east through Red Deer Lake into Lake Winnipegosis. Length: about 225 km (140 miles) Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014red? deer? n. 1. a deer, Cervus elaphus, of Europe and Asia, having a reddish brown summer coat. 2. the white-tailed deer, Odocoileus virginianus, in its summer coat. [1425?75] Red? Deer` n. a city in S central Alberta, in W Canada. 54,425. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.