[ 'dʌɪnəsɔ: ]
■ noun
1》 a Mesozoic fossil reptile of a diverse group including large bipedal and quadrupedal forms such as tyrannosaurus, brachiosaurus, triceratops, etc.
2》 a person or thing that is outdated or has become obsolete because of failure to adapt.
Derivatives
~ian adjective &noun
Origin
C19: from mod. L. ~us , from Gk deinos 'terrible' + sauros 'lizard'.