di‧no‧saur /ˈdaɪnəsɔː $ -sɔːr/ noun [countable]
[Date: 1800-1900; Language: Greek; Origin: deinos 'terrible' + sauros 'lizard']

1. one of a group of reptiles that lived millions of years ago

2. informal someone or something that is old-fashioned and no longer effective or suitable for modern times:
lengthy speeches by some of the party’s dinosaurs

[TahlilGaran] Dictionary of Contemporary English ▲