Standard Lemma guide

ichthyosaur

noun · 2 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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  • /ˈɪkθiəsɔːɹ/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

Any fishlike marine reptiles of the extinct order †Ichthyosauria of the early Triassic to the late Cretaceous period, that had a body somewhat like a porpoise.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: archosaur, archosaurian, archosaurian reptile

Narrower terms: ichthyosaurus, stenopterygius, Stenopterygius quadrisicissus

History

Etymology

Borrowed from translingual Ichthyosaurus, equivalent to Ancient Greek ἰχθύς (ikhthús, “fish”) + Ancient Greek σαῦρος (saûros, “lizard”).

Across languages

Translations

31 source translations are retained for this English entry.

  • Chinese Mandarin: 魚龍 /鱼龙 (yúlóng) — extinct reptile
  • Crimean Tatar: ihtiozavr — extinct reptile
  • Dutch: ichthyosauriër — extinct reptile
  • Esperanto: iĥtiosaŭro — extinct reptile
  • Esperanto: iktiosaŭro — extinct reptile
  • Finnish: kalalisko — extinct reptile
  • French: ichtyosaure — extinct reptile
  • German: Fischechse — extinct reptile
  • German: Fischeidechse — extinct reptile
  • German: Fischsaurier — extinct reptile
  • German: Ichthyosaurier — extinct reptile
  • German: Ichthyosaurus — extinct reptile
  • Greek: ιχθυόσαυρος (ichthyósavros) — extinct reptile
  • Icelandic: fiskeðla — extinct reptile
  • Italian: ittiosauro — extinct reptile
  • Japanese: 魚竜 (gyoryū) — extinct reptile
  • Korean: 어룡 (eoryong) — extinct reptile
  • Latin: ichthyosaurus — extinct reptile
  • Polish: ichtiozaur — extinct reptile
  • Portuguese: ictiossauro — extinct reptile
  • Romanian: ihtiozaur — extinct reptile
  • Russian: ихтиоза́вр (ixtiozávr) — extinct reptile
  • Russian: р̀ыбоя́щер (r̀ybojáščer) — extinct reptile
  • Slovak: rybojašter — extinct reptile
  • Slovene: ihtiozaverr — extinct reptile
  • Spanish: ictiosaurio — extinct reptile
  • Swedish: fisködla — extinct reptile
  • Swedish: ichthyosaurie — extinct reptile
  • Tagalog: isdambayawak — extinct reptile
  • Ukrainian: іхтіоза́вр (ixtiozávr) — extinct reptile
  • Volapük: liktiosaur — extinct reptile
Real reading context

ichthyosaur in complete knowledge articles