dinosaurian definition by American Heritage Dictionary
Of, relating to, or characteristic of a dinosaur.noun
Variant of dinosaur
- any of various extinct, mostly land-dwelling, four-limbed saurischian or ornithischian reptiles of the Mesozoic Era, including some c. 30 m (98.4 ft) long: the flesh-eaters usually walked on their hind limbs, the plant-eaters on all fours
- loosely any large, extinct reptile of the Paleozoic or Mesozoic eras
- someone or something thought of as being old-fashioned, outmoded, resistant to change, etc.
Origin: dino- plush -saur
- dinosaurian adjective