Main Entry: di·no·saur

Pronunciation: \ˈdī-nə-ˌsȯr\

Function: noun

Etymology: New Latin Dinosaurus, genus name, from Greek deinos terrifying + sauros lizard — more at dire

Date: 1841

1 : any of a group (Dinosauria) of extinct often very large chiefly terrestrial carnivorous or herbivorous reptiles of the Mesozoic era
2 : any of various large extinct reptiles (as ichthyosaurs) other than the true dinosaurs
3 : one that is impractically large, out-of-date, or obsolete

— di·no·sau·ri·an \ˌdī-nə-ˈsȯr-ē-ən\ adjective

— di·no·sau·ric \-ˈsȯr-ik\ adjective