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| mo·sa·saur [ mṓssə sàwr ] (plural mo·sa·saurs) |
noun |
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| Definition: |
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dinosaur that lived in ocean: an extinct lizard that lived in the ocean and had a long slender body with limbs resembling paddles for steering, and a long flexible tail for propulsion. Family Mosasauridae.
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| [Mid-19th century. < modern Latin Mosaurus< Latin Mosa, the Meuse River] |
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