ˈplethəˌdän noun
Etymology: New Latin pleth- (from Greek plēthos mass, magnitude, from plēthein to be full) + -odon
1. capitalized : the type genus of Plethodontidae comprising New World terrestrial salamanders that lay large yolk-filled eggs and do not pass through an aquatic larval period — see red-backed salamander
2. -s : a salamander of the genus Plethodon