Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
any of numerous saltwater or freshwater snakes; esp., any of a widely distributed genus (Natrix) of thick-bodied, nonpoisonous, freshwater colubrid snakes that feed chiefly on fish and amphibians
Used by arrangement with John Wiley & Sons, Inc.
nounThe 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.
- Any of various nonvenomous snakes of the genus Natrix, living in or frequenting freshwater streams and ponds.
- Any of various aquatic or semiaquatic snakes.