Dinosaur (noun)

1. A extinct reptiles of the Mesozoic Era, characterized by their large size and specialized bones.
2. Something or someone considered to be outdated or extinct.

Origin:

The word "dinosaur" was first coined by paleontologist sir richard owen in 1842, from the greek words "deinos" meaning "terrible" or "fearfully great" and "sauros" meaning "lizard".

Examples:

1. The T-Rex is one of the most famous dinosaurs, known for its large size and powerful jaws.
2. The museum had a exhibit of dinosaur fossils from the Triassic period.
3. The scientist had to use computer generated imagery to fill in the missing parts of the dinosaur skeleton.
4. The children were fascinated by the life size models of the dinosaurs.
5. I feel like a dinosaur in this digital age, I can't keep up with all the new technology.