mosasaur

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noun mo·sa·saur \ ˈmō-zə-ˌsȯr \

Definition of mosasaur

:any of a family (Mosasauridae) of very large extinct marine fish-eating lizards of the Upper Cretaceous with limbs modified into paddles that are related to the recent monitor lizards

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Origin and Etymology of mosasaur

New Latin Mosasaurus, from Latin Mosa the river Meuse + Greek sauros lizard


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