ˌ ̷ ̷ ̷ ̷ˈspändəˌlī noun plural
Usage: capitalized
Etymology: New Latin, from lepo- + -spondyli
: a taxonomic category comprising amphibians in which the centra of the vertebrae develop directly as bone without an intermediate cartilaginous stage: as
a. : an order or other division comprising the extinct Aistopoda, Microsauria, and Nectridia
b. : a subclass of Amphibia comprising the above groups together with the Caudata and Gymnophiona