Also called ring snake. a common European snake, Natrix natrix, having a collar of bright orange or yellow.
any of various small, slender snakes of North America, as the garter snake or green snake.
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Origin of grass snake
An Americanism dating back to 1835–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for grass snake
a harmless nonvenomous European colubrid snake, Natrix natrix, having a brownish-green body with variable markings
any of several similar related European snakes, such as Natrix maura (viperine grass snake)
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