Standard Lemma guide

stegosaurus

noun · 3 senses · updated from the 2026-07-25 local source snapshot

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.

Sound

Pronunciation

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  • /ˌstɛɡəˈsɔːɹəs/
  • CMU ARPABET: S T EH2 G AH0 S AO1 R AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

Any of the clade †Stegosauria of quadruped ornithischian dinosaurs with dorsal plates and spikes, alive during the Jurassic and early Cretaceous periods.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: stegosaur

Antonyms: none provided

2

noun

Meaning 2

Any of the genus †Stegosaurus of herbivorous four-legged armored dinosaurs from the Late Jurassic, characterized by the distinctive kite-shaped upright plates along their backs and spikes on their tails.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

herbivorous ornithischian dinosaur with a row of bony plates along its back and a spiked tail probably used as a weapon

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: stegosaur, Stegosaur stenops

Antonyms: none provided

Broader terms: armored dinosaur

History

Etymology

From the genus name Stegosaurus. From Ancient Greek στέγος (stégos, “roof”) + σαῦρος (saûros, “lizard”).

Across languages

Translations

7 source translations are retained for this English entry.

  • French: stégosaure — extinct reptile
  • German: Stegosaurus — extinct reptile
  • Greek: στεγόσαυρος (stegósavros) — extinct reptile
  • Polish: stegozaur — extinct reptile
  • Portuguese: estegossauro — extinct reptile
  • Romanian: stegozaur — extinct reptile
  • Russian: стегоза́вр (stegozávr) — extinct reptile