Al·​ber·​to·​saur·​us | \ al-ˌbər-tə-ˈsȯr-əs How to pronounce Albertosaurus (audio) \

Definition of Albertosaurus

: a genus of large, carnivorous tyrannosaurid dinosaurs of the late Cretaceous known especially from fossils found in western North America Similarly, the heaviest Cretaceous tyrannosaurs, including Albertosaurus and the larger, 16,000-pound Tyrannosaurus rex, have, relatively speaking, some of the shortest forelimbs of any theropods.— Allison V. Andors, Natural History, June 1995

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First Known Use of Albertosaurus

1905, in the meaning defined above

History and Etymology for Albertosaurus

borrowed from New Latin, from Alberta, province of Canada + New Latin -o- -o- + -saurus -saurus

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The first known use of Albertosaurus was in 1905

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