| pachycephala | (n) arboreal insectivorous birds, Syn. genus Pachycephala |
| pachycephalosaur | (n) bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found, Syn. pachycephalosaurus |
| Pachycephala | prop. n. A genus of arborial insectivorous birds. |
| サンダーバード | [sanda-ba-do] (n) thunderbird (North-American indigenous mythical spirit bird); thunderbird (Australian bird, Pachycephala gutturalis); (P) [Add to Longdo] |
| パキケファロサウルス | [pakikefarosaurusu] (n) pachycephalosaurus [Add to Longdo] |
| 堅頭竜 | [けんとうりゅう, kentouryuu] (n) pachycephalosaur (any dinosaur of infraorder Pachycephalosauria) [Add to Longdo] |