Definition of edaphosaur in English:

edaphosaur

(also edaphosaurus)

noun

  • A large herbivorous synapsid reptile of the late Carboniferous and early Permian periods, with long knobbly spines on its back supporting a sail-like crest.

    • ‘Along with the Diadectidae, Edaphosaurus is one of the earliest known plant-eating tetrapods (land-living vertebrates).’
    • ‘Other Edaphosauruses were not so large and some were half a meter or less in length.’

Origin

Modern Latin, from Greek edaphos ‘floor’ + sauros ‘lizard’.

Pronunciation

edaphosaur

/ˈedəfōsôr/