hadrosaur

play
noun had·ro·saur \ˈha-drə-ˌsȯr\

Definition of hadrosaur

  1. :  any of a genus (Hadrosaurus) or family (Hadrosauridae) of mainly bipedal dinosaurs of the Late Cretaceous that have the forward part of the jaws toothless and flattened into a beak-like snout and the back part of the jaws filled with rows of numerous small, grinding teeth and that often have a solid or hollow bony crest on the skull :  duck-billed dinosaur … the hadrosaurs evolved into some 21 different species during their 20 million-year stint on earth … — Virginia Morell

Recent Examples of hadrosaur from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hadrosaur'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of hadrosaur

New Latin Hadrosaurus, genus name, from Greek hadros thick, bulky + sauros lizard


Learn More about hadrosaur


Seen and Heard

What made you want to look up hadrosaur? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to counsel, recommend, or inform

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!