VIDEOS:
Wyvern, Not Dragon
(SPOILER WARNING) When the Wyvern appears, the Flash calls it a dragon until Nora corrects him. When Wonder Woman calls it a dragon, both Ren and Cyborg correct her.
Example of:
Insistent Terminology
Ancient Wyvern
Example of:
Our Wyverns Are Different
Guardian Dragon
Example of:
Our Wyverns Are Different