Word.ws English Dictionary

mosasaur

mosasaur noun: a large extinct marine reptile in the family †Mosasauridae, dominant marine predator of the Cretaceous. Mosasaurs are considered to belong to Squamata, the same group that includes lizards and snakes.

mosasaur: a large extinct marine reptile in the family †Mosasauridae, dominant marine predator of the...
Image: Ballista, CC BY-SA 3.0, via Wikimedia Commons

Noun

mosasaur (plural mosasaurs)

  1. A large extinct marine reptile in the family †Mosasauridae, dominant marine predator of the Cretaceous. Mosasaurs are considered to belong to Squamata, the same group that includes lizards and snakes.
    • What I find deeply disturbing, however, is that Mr. Ross could believe that the earth was created 10,000 years ago, but nevertheless write in his dissertation that mosasaurs, or marine reptiles, existed more than 65 million years ago.2007 February 14, “The Case of the Creationist Geologist (5 Letters)”, in New York Times
    • Mosasaurs could reach lengths of up to 17m and lived mainly in offshore waters of the Late Cretaceous.2012, Winand Brinkmann, Kenneth De Baets, editors, Paleontological Museum of the University of Zürich: Exhibition Guide, Paleontological Institute and Museum of the University of Zürich, →ISBN, page...

Forms of mosasaur

pluralmosasaurs

Origin of mosasaur

From scientific Latin Mosasaurus (genus name).

Questions about mosasaur

What does mosasaur mean?
Mosasaur means a large extinct marine reptile in the family †Mosasauridae, dominant marine predator of the Cretaceous. Mosasaurs are considered to belong to Squamata, the same group that includes lizards and snakes.
What part of speech is mosasaur?
Mosasaur is a noun.
What is the plural of mosasaur?
The plural of mosasaur is mosasaurs.

Words near mosasaur in the dictionary

  1. Mosammat
  2. mosandrite
  3. mosapramine
  4. mosapride
  5. Mosarwa
  6. mosasaur
  7. mosasaurid
  8. mosasaurids
  9. mosasaurine
  10. mosasaurines
  11. mosasauroid

Source and license

Adapted from Wiktionary: mosasaur (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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