First Known Use: 1841
Dictionary
mosasaur
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 of MOSASAUR
New Latin Mosasaurus, from Latin Mosa the river Meuse + Greek sauros lizard
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