di ‧ no ‧ saur /ˈdaɪnəsɔː $ -sɔːr/ BrE AmE noun [countable]
[ Date: 1800-1900 ; Language: Greek ; Origin: deinos 'terrible' + sauros 'lizard' ]
1 . one of a group of ↑ reptile s 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