water rat

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any of various rodents having aquatic habits.
the muskrat, Ondatra zibethica.
(in Australia and New Guinea) any of the aquatic rats of the subfamily Hydromyinae, especially of the genus Hydromys.
Slang. a vagrant or thief who frequents a waterfront.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
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Origin of water rat

First recorded in 1545–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use water rat in a sentence

British Dictionary definitions for water rat

water rat

any of several small amphibious rodents, esp the water vole or the muskrat
any of various amphibious rats of the subfamily Hydromyinae, of New Guinea, the Philippines, and Australia
informal a person who is very fond of water sports
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012