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1. A little circle.
2. A small circular object.
3. A medieval cap with a padded roll around the brim.
[Middle English, from Old French rondelet, diminutive of rondel, roundel; see roundel.]
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.
literary a small circle
[C14: from Old French rondelet, from Old French rondel]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014