pachycephalosaurus

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pach·y·ceph·a·lo·saur·us

 (păk′ĭ-sĕf′ə-lə-sôr′əs)
n.
A large pachycephalosaurian dinosaur of the genus Pachycephalosaurus, having a thick domed skull with bony knobs and a long tail. Also called pachycephalosaur.

[New Latin Pachycephalosaurus, genus name : Greek pakhus, thick + Greek kephalē, head; see ghebh-el- in Indo-European roots + Greek sauros, lizard.]

pach·y·ceph·a·lo·sau·rus

(păk′ĭ-sĕf′ə-lə-sôr′əs)
A medium-sized, plant-eating dinosaur of the late Cretaceous Period having a domed skull up to 10 inches (25.4 centimeters) thick.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pachycephalosaurus - bipedal herbivore having 10 inches of bone atop its headpachycephalosaurus - bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found
bone-headed dinosaur - bipedal herbivorous dinosaurs with bony crowns