HADROSAUR Scrabble 13 Words With Friends 13 Definition noun any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet. — synonyms: hadrosaurus, duck-billed_dinosaur See all 140 words you can make from HADROSAUR → 9-letter words Words starting with H Words ending with R ← Unscramble different letters