Adjacent Words

mosasaur definitions

	Tweet

Merriam Webster's

noun Etymology: New Latin Mosasaurus, from Latin Mosa the river Meuse + Greek sauros lizard Date: 1841 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

Webster's 1913 Dictionary

Mosasaur Mos"a*saur, Mosasaurian Mos`a*sau"ri*an, n. (Paleon.) One of an extinct order of reptiles, including Mosasaurus and allied genera. See Mosasauria.