外博词典，懂英语单词快速记忆法的在线英语词典
mosasaurus (n.)
carnivorous marine reptile of the Cretaceous period, 1830, from Latin Mosa "the river Meuse" (Dutch Maas) + -saurus. the first fossils of the ancient reptile were discovered 1760s in a chalk quarry near Maastricht, on the Meuse.
