Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a catrigged sailboat, usually having a centerboard
Used by arrangement with John Wiley & Sons, Inc.
The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A broad-beamed sailboat carrying a single sail on a mast stepped well forward and often fitted with a centerboard.
Origin: From obsolete cat, catboat.