Breadcrumb Home > Thesaurus > H Synonyms of hadrosaur Find synonyms for: Noun 1. hadrosaur, hadrosaurus, duck-billed dinosaur, ornithischian, ornithischian dinosaur usage: any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of hadrosaur (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: occultation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language