dinosaur

A dinosaur is defined as any of the large, extinct reptiles that roamed Earth during the Paleozoic and Mesozoic eras.

(noun)

An example of a dinosaur is the Brontosaurus.

The definition of a dinosaur is someone who resists change or is old-fashioned.

(noun)

An example of a dinosaur is the person in the office who still sends messages by fax.

See dinosaur in Webster's New World College Dictionary

noun

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- + -saur

Related Forms:

See dinosaur in American Heritage Dictionary 4

noun

Any of various extinct, often gigantic, carnivorous or herbivorous reptiles of the orders Saurischia and Ornithischia that were chiefly terrestrial and existed during the Mesozoic Era.
A relic of the past: “living dinosaurs of the world of vegetation” (John Olmsted).
One that is hopelessly outmoded or unwieldy: “The old, big-city teaching hospital is a dinosaur” (Peggy Breault).

Origin:

Origin: New Latin Dīnosauria, group name

Origin: , from Dīnosaurus, former genus name

Origin: : Greek deinos, monstrous

Origin: + Greek sauros, lizard

Related Forms: