A large, white-furred bear (Ursus maritimus or Thalarctos maritimus) living in Arctic regions. Also called white bear.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "polar bear" in a sentence
"Zabrinski, the polar bear with the red face, grinned, fished out a pack of cigarettes and passed them around."