## Meanings
1. A large reptile that lived millions of years ago and is now extinct.
2. A person or thing that is old-fashioned and unwilling to change.

## Examples
- The museum has a huge dinosaur skeleton in the main hall.
- Some critics call the old phone company a dinosaur in the digital age.

## Derived Forms
- dinosaur-burner
- dinosaurian
- dinosauric
- dinosaurish
- dinosaurlike
- dinosauroid
- dinosaurologist
- dinosaurology
- nondinosaur
- pedosaur
- pinosaur

## Roots and Affixes
- Root: δεινός

## Etymology
From Ancient Greek δεινός (deinós, “terrible, awesome, mighty, fearfully great”) + σαῦρος (saûros, “lizard, reptile”). Coined as Dinosaur(s) and Dinosauria by paleontologist Richard Owen in 1841/1842.

## AI Etymology
dinosaur comes from Ancient Greek δεινός (deinós, “terrible, awesome, mighty, fearfully great”) + σαῦρος (saûros, “lizard, reptile”). Coined as Dinosaur(s) and Dinosauria by paleontologist Richard Owen in 1841/1842. Current senses include A large reptile that lived millions of years ago and is now extinct and A person or thing that is old-fashioned and unwilling to change. English relatives and later formations include dinosaur-burner, dinosaurian, dinosauric.

## Topics
- Describing Qualities

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dinosaur

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Thesaurus

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