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dinosaur

play
noun di·no·saur \ˈdī-nə-ˌsȯr\

Simple Definition of dinosaur

  • : one of many reptiles that lived on Earth millions of years ago

  • : someone or something that is no longer useful or current : an obsolete or out-of-date person or thing

Source: Merriam-Webster's Learner's Dictionary

Full Definition of dinosaur

  1. 1 :  any of a group (Dinosauria) of extinct often very large chiefly terrestrial carnivorous or herbivorous reptiles of the Mesozoic era

  2. 2 :  any of various large extinct reptiles (as ichthyosaurs) other than the true dinosaurs

  3. 3 :  one that is impractically large, out-of-date, or obsolete

dinosaurian

play \ˌdī-nə-ˈsȯr-ē-ən\ adjective

dinosauric

play \-ˈsȯr-ik\ adjective

Examples of dinosaur in a sentence

  1. The old factory is now a rusting dinosaur.

  2. The character she plays is a dinosaur—a former beauty queen who is living in the past.



Origin and Etymology of dinosaur

New Latin Dinosaurus, genus name, from Greek deinos terrifying + sauros lizard — more at dire


First Known Use: 1841


DINOSAUR Defined for Kids

dinosaur

play
noun di·no·saur \ˈdī-nə-ˌsȯr\

Definition of dinosaur for Students

  1. :  any of a group of extinct often very large mostly land-dwelling reptiles that lived millions of years ago





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