/ tɪˈrænəsɔː(r); NAmE ; taɪ-/ (also tyr·an·no·saurus / tɪˌrænəˈsɔːrəs/) noun
a very large dinosaur that stood on two legs, had large powerful jaws and two short front legs
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WORD ORIGIN
modern Latin , from Greek turannos tyrant + sauros lizard, on the pattern of dinosaur .