dinosaur
noun [ C ] uk/ˈdaɪ.nə.sɔːr/ us/ˈdaɪ.nə.sɔːr/
A2 恐龙
a type of reptile that became extinct about 65,000,000 years ago. There were many different types of dinosaur, some of which were extremely large.
disapproving老古董（指过时的人或物）
an old-fashioned person or thing that people no longer consider to be useful
This computer's a dinosaur, isn't it? 这种计算机有点过时了，不是吗？