hadrosaur

Back-formation from Hadrosauridae, from the type genus Hadrosaurus, which in turn was derived from Ancient Greek ἁδρός (hadrós, “strong”) + σαῦρος (saûros, “lizard”).

hadrosaur (plural hadrosaurs)

1. (paleontology) Any ornithopod dinosaur of the family Hadrosauridae.
   • 2018, Tim Flannery, Europe: A Natural History, page 31:

     Bipedal hadrosaurs, great hulking lambeosaurs, certain rhino-like ceratopsians and relatives of the velociraptors - all large and probably able swimmers - had the greatest success.

• duckbill, duck-billed dinosaur, hadrosaurid

• hadrosauroid
  • ornithopod
    • cerapod
      • ornithischian
        • dinosaur
          • sauropsid
            • chordate
              • animal

• (types of hadrosaur)
  • hadrosaurine
  • lambeosaurine

• hadrosaurian
• hadrosaurine
• hadrosauroid

• “hadrosaur”, in OneLook Dictionary Search.