Definition of "water dog" []

• A dog that takes easily to the water, especially one trained for hunting waterfowl. (noun)
• Informal A person who feels at home in or on the water. (noun)
• See mudpuppy. (noun)
• Western U.S. Any of several large salamanders. (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.