Camarasaurus n. : A genus of gigantic American Jurassic dinosaurs, having large cavities in the bodies of the dorsal vertebrae.

Example:
what are some interesting facts about he dinosaurs called Camarasaurus?

Taxonomy
Camarasaurus lentus, sauropods, lizard, skeleton, dinosaurs, supremus, Late Jurassic, giant sauropods, free encyclopedia, Jurassic, species, skull, Morrison Formation, The Dinosaurs, Morosaurus, Cathetosaurus, Camarasauridae, vertebrae.

Defination from the web:
Camarasaurus (pronounced /ˌkæmərəˈsɔrəs/ KAM-uh-ruh-SAWR-us) meaning 'chambered lizard', referring to the holes in its vertebrae (Greek καμαρα ... This suggests that Camarasaurus traveled in herds or, at least, 'family' groups. ...