any of several aquatic turtles of the genus Sternotherus, of North America, which, when disturbed, emit a musky secretion.
Origin of musk turtle
An Americanism dating back to 1865–70; so called from its musky smell
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for musk turtle
any of several small turtles of the genus Sternotherus, esp S. odoratus (common musk turtle or stinkpot), that emit a strong unpleasant odour: family Kinosternidae
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