The Collaborative International Dictionary
Camarasaurus \Cam`a*ra*sau"rus\, n. [NL. fr. Gr. ? a vaulted chamber + ? lizard.] (Paleon.) A genus of gigantic American Jurassic dinosaurs, having large cavities in the bodies of the dorsal vertebr[ae]. [1913 Webster] ||
Wikipedia
Camarasaurus was a genus of quadrupedal, herbivorous dinosaurs. It was the most common of the giant sauropods to be found in North America. Its fossil remains have been found in the Morrison Formation of Colorado and Utah, dating to the Late Jurassic epoch ( Kimmeridgian to Tithonian stages), between 155 and 145 million years ago.
Camarasaurus presented a distinctive cranial profile of a blunt snout and an arched skull that was remarkably square. It likely travelled in herds, or at least in family groups.
The name means "chambered lizard", referring to the hollow chambers in its vertebrae ( Greek καμαρα/kamara meaning "vaulted chamber", or anything with an arched cover, and σαυρος/sauros meaning "lizard").
Usage examples of "camarasaurus".
By August 1877 Cope was describing remains of Camarasaurus supremus from near Canon City.
Broad-toothed sauropods were similar to the Jurassic North American Camarasaurus.