noun🔗ShareIn scientific usage, any of the animals belonging to the clade Dinosauria, especially those that existed during the Triassic, Jurassic and Cretaceous periods and are now extinct."Many children are fascinated by dinosaurs, especially the huge ones that lived millions of years ago. "animalsciencebiologygeologyhistoryChat with AIVocabulary GamePractice Reading
noun🔗ShareIn non-scientific usage, any non-avian dinosaur."My son loves dinosaurs, especially the ferocious ones. "animalbiologynaturesciencegeologypastChat with AIVocabulary GamePractice Reading
noun🔗ShareAny extinct reptile, not necessarily belonging to Dinosauria, that existed between about 230 million and 65 million years ago."Many children are fascinated by dinosaurs and enjoy learning about the different kinds that lived long ago. "animalbiologygeologyhistorynaturesciencepastorganismChat with AIVocabulary GamePractice Reading
noun🔗ShareA person or organisation that is very old, has very old-fashioned views, or is not willing to change and adapt."The school's administration is a bit of a dinosaur when it comes to technology; they refuse to adopt online learning platforms. "attitudeorganizationpersonbusinessindustrysocietyageChat with AIVocabulary GamePractice Reading
noun🔗ShareAnything no longer in common use or practice.""Using floppy disks to save computer files feels like working with dinosaurs; nobody does that anymore." "historypastChat with AIVocabulary GamePractice Reading
