cottontail definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of several common American rabbits (genus Sylvilagus) with a short, fluffy tail that is white underneath
cottontail definition by American Heritage Dictionary
Any of several North American rabbits of the genus Sylvilagus, having grayish or brownish fur and a tail with a fluffy white underside. Also called wood rabbit.