Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
Any of a group of herbivorous dinosaurs, of the genus Pachycephalosaurus from the late Cretaceous period.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: pachycephalosaur
Antonyms: none provided
Broader terms: bone-headed dinosaur
History
Etymology tree Proto-Indo-European *bhenǵh- Proto-Indo-European *-us Proto-Indo-European *bhénǵhus Proto-Hellenic *pəkhús Ancient Greek παχύς (pakhús) Proto-Indo-European *ghébhōlder. Proto-Hellenic *khephəlā́ Ancient Greek κεφαλή (kephalḗ) Pre-Greekbor. Ancient Greek σαύρα (saúra) Ancient Greek σαῦρος (saûros)bor. Translingual -saurus Translingual Pachycephalosaurusbor. English pachycephalosaurus Borrowed from translingual Pachycephalosaurus, from pachy- (“thick”) + cephalo- (“head”) + -saurus (“lizard”).
