Hadrosaurus hadrosaur • haec · · · Info · Definitions · Synonyms · Characters · · Hadrosaurus · · Text Latin · · Script 11 · · Length Definitions · · · (noun) any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic. Synonyms: hadrosaur, hadrosaurus, duck-billed dinosaur. · · Noun Definition 1 Synonyms · · · hadrosaur · · Synonym 1 duck-billed dinosaur · · Synonym 2 Characters · · H latin capital letter h U+0048 a latin small letter a U+0061 d latin small letter d U+0064 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075