|
|
 |
|
|
|
|
| pter·o·saur [ térrə sàwr ] (plural pter·o·saurs) |
noun |
|
| Definition: |
| |
extinct flying reptile: an extinct flying reptile of the Triassic, Jurassic, and Cretaceous periods that had membranous wings supported by an elongated fourth digit. Order Pterosauria.
|
| [Mid-19th century. < modern Latin Pterosauria< Greek pteron "wing" + sauros "lizard"] |
|
|
|
