n. 1 an extinct reptile of the Mesozoic era, often of enormous size. 2 a large unwieldy system or organization, esp. one not adapting to new conditions. dinosaurian adj. & n.
[ mod.L dinosaurus f. Gk deinos terrible + sauros lizard ]
DINOSAUR
Meaning of DINOSAUR in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012