Definition of "wyvern" [wy•vern]

• Heraldry A two-legged dragon having wings and a barbed tail. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Hey, did you know a wyvern is a heraldic beast having a serpent's tail and a dragon's head and a body with wings and two legs?"
• "In Legends of Steel Part IX, our brave heroes take on the invading Yarite army all by themselves, and are laid low by the invulnerable boss riding a demon wyvern."
• "In Legends of Steel Part VIII (10 page pdf), some wyvern-riding moo-rons show up and convince the local yokels that pass as the government in this farm town that they should hand us over to the evil empire."