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Related to black rat: brown rat
A common rat (Rattus rattus) found worldwide, especially in populated areas, having a black or dark brown coat.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Animals) a common rat, Rattus rattus: a household pest that has spread from its native Asia to all countries
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||black rat - common household pest originally from Asia that has spread worldwide|
rat - any of various long-tailed rodents similar to but larger than a mouse
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