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Mosasaurus
noun
Mo·sa·sau·rus
Definition of Mosasaurus
: a genus (the type of the family Mosasauridae) of large extinct aquatic Cretaceous fish-eating lizards related to the recent monitors but having the limbs modified into swimming paddles
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Origin and Etymology of mosasaurus
New Latin, from Latin Mosa the river Meuse (near which the first known species was discovered) + New Latin -saurus
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