• Webster's Revised Unabridged Dictionary
    • n Mosasaurus (Paleon) A genus of extinct marine reptiles allied to the lizards, but having the body much elongated, and the limbs in the form of paddles. The first known species, nearly fifty feet in length, was discovered in Cretaceous beds near Maestricht, in the Netherlands.
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Century Dictionary and Cyclopedia
    • n mosasaurus The typical genus of Mosasauria. M. camperi was discovered in 1780 in the Maestricht, and originally called Lacerta gigantea. The genus is also called Saurochampsa. Also written Mosæsaurus.
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Webster's Revised Unabridged Dictionary
NL., fr. L. Mosa, the River Meuse (on which Meastricht is situated) + Gr. a lizard


In literature:

Mosasaurus in St. Peter's Mount, 210.
"A Manual of Elementary Geology" by Charles Lyell
The teeth are quite reptilian, being not unlike miniature teeth of Mosasaurus.
"Dragons of the Air" by H. G. Seeley