Pachycephalosaurus Definition
păkĭ-sĕfə-lə-sôrəs
noun
A large pachycephalosaurian dinosaur of the genus Pachycephalosaurus, having a thick domed skull with bony knobs and a long tail.
American Heritage
Synonyms:
pronoun
A taxonomic genus within the family Pachycephalosauridae — a dinosaur that lived during the Late Cretaceous period (Maastrichtian faunal stage) of what is now North America.
Wiktionary
Origin of Pachycephalosaurus
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New Latin Pachycephalosaurus genus name Greek pakhus thick Greek kephalē head ghebh-el- in Indo-European roots Greek sauros lizard
From American Heritage Dictionary of the English Language, 5th Edition
New Latin, from Ancient Greek παχύς (pakhus, “thick”) + κεφαλή (kephalē, “head”) + σαῦρος (sauros, “lizard”)
From Wiktionary
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