noun. 1  a. Political division of an area into partially autonomous regions. 2  Loyalty to the interests of a particular region. 3  A feature, such as an expression, a pronunciation, or a custom, that is characteristic of a geographic area.  The use of regional characteristics, as of locale, custom, or speech, in literature or art.
The number of teeth dinosaurs had varied dramatically, depending on the type of dinosaur. Some dinosaurs, like Ornithomimus and Gallimimus, did not have teeth. On the other end of the spectrum, Tyrannosaurus rex had 50 to 60 solid cone-shaped teeth as big as bananas. Hadrosaurs, or duck-billed dinosaurs, had the most teeth: up to 960 cheek teeth! Dinosaur teeth were replaceable. If a dinosaur broke or lost a tooth, another grew in to take the place, behaving much like sharks teeth do today.
Tyrannosaurus had teeth up to 18 centimetres long. These teeth had a razor sharp point to stab prey ,and rough-saw like edges to rip through flesh. An adult had between 50 a â¦ nd 100 teeth and if one fell out, it simply grew another! 3 people found this useful. 1  The Mighty Dinosaur: Tyrannosaurus Rex The Tyrannosaurus rex is a species of dinosaur that has caught public interest and imagination for many years.