Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Any of various medium-sized herbivorous dinosaurs of the genus Pachycephalosaurus of the late Cretaceous period of North America, having a beaked mouth, rows of bumps on the head, and a domed skull up to ten inches (25.4 cm) thick.
Wiktionary
- n. Any of a group of herbivorous dinosaurs, of the genus Pachycephalosaurus from the late Cretaceous period
WordNet 3.0
- n. bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found
Etymologies
- New Latin Pachycephalosaurus, genus name : Greek pakhus, thick + Greek kephalē, head; see ghebh-el- in Indo-European roots + Greek sauros, lizard. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“They compared them to dozens of fossils from related species found in Canada and Montana before confirming that the fossils represented a new genus of pachycephalosaur, a group of bipedal, thick-skulled dinosaurs.”
“Mammoth Skull: 3000 Bells Mammoth Torso: 2500 Bells Pachycephalosaur Length: 13.1 feet Late Cretaceous 'I must tell you a smidgen about the pachycephalosaur.”
“With the help of CT scans and microscopic analysis of slices through the bones of Pachycephalosaurus and Stygimoloch, the team concluded that Stygimoloch, with its high, narrow dome, growing tissue and unfused skull bones, was probably a pachycephalosaur subadult, in a stage just before sexual maturity.”
“Anguid lizards and monkeys are also high on the list of priorities, and I’m excited by the recent description of the new North American pachycephalosaur Dracorex hogwartsia, though don’t ask me what I think about the name.”
Lists
These user-created lists contain the word ‘pachycephalosaur’.
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Dinosaurs, extended
At first, this was a list for things found in Dinosaurs: A Concise Natural History by David E. Fastovsky. But now it's degenerated a bit to contain anything dinosaur or fossil related.
disarticulate, body fossil, trace fossil, apatite, soft anatomy, permineralization, replacement, articulated, disarticulated, intestine’s-eye view, ichnofossil, paleoenvironment and 270 more...
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Name-Calling for Fun and Profit
I figured out the thing all these terms have in common, besides that they can be used as insults. They all crack me up.
drip, yahoo, dweeb, nimrod, wanker, nincompoop, weasel, skank, fussbudget, dink, twit, guttersnipe and 125 more...
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Dinosaurs
Just the animals themselves. (See the other gigantic tar-pit of a list called "Words of Dinosaurology" for other terms.) Also see this list for some dinosaurs that are considered "proto-birds."
aachenosaurus, abelisaurus, abrictosaurus, abrosaurus, acanthopholis, acanthostega, achelousaurus, acrocanthosaurus, actiosaurus, adasaurus, aeolosaurus, aegyptosaurus and 589 more...
Tweets
Looking for tweets for pachycephalosaur.

chained_bear "Bone-headed dinosaur."
Hey, I think I know that guy... Aug 28, 2008