ichthyosaur

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/ˈɪkθiəsɔːɹ/

noun

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.

Similar
ichthyosaurus
Origintranslingual Ichthyosaurus ← Ancient Greek ἰχθύς →
First used c. 1830Scrabble 22
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Meanings

nounichthyosaur (plural ichthyosaurs)

plural ichthyosaurs

  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.First known use c. 1830

    The most striking marine reptiles are the fishlike or porpoiselike ichthyosaurs.

    2013, F. Crescitelli, The Visual System in Vertebrates, page 27

    Synonyms: ichthyosaurus

Synonyms & antonyms

nounAny 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.

Similar
ichthyosaurus

Origin

  1. Ancient Greekσαῦρος“lizard”
  2. Ancient Greekἰχθύς“fish”
  3. translingualIchthyosaurus
  4. Englishichthyosaur

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

More words from translingual, Ancient Greek

Full word history & related roots →

Translations

Chinese Mandarin 魚龍 /鱼龙
  • 魚龍 /鱼龙 (yúlóng)extinct reptile
Dutch ichthyosauriër
  • ichthyosauriërextinct reptile
Esperanto iĥtiosaŭro, iktiosaŭro
  • iĥtiosaŭroextinct reptile
  • iktiosaŭroextinct reptile
Finnish kalalisko
  • kalaliskoextinct reptile
French ichtyosaure
  • ichtyosaureextinct reptile
German Fischechse, Fischeidechse
  • Fischechseextinct reptile
  • Fischeidechseextinct reptile
  • Fischsaurierextinct reptile
  • Ichthyosaurierextinct reptile
  • Ichthyosaurusextinct reptile
Greek ιχθυόσαυρος
  • ιχθυόσαυρος (ichthyósavros)extinct reptile
Icelandic fiskeðla
  • fiskeðlaextinct reptile
Italian ittiosauro
  • ittiosauroextinct reptile
Japanese 魚竜
  • 魚竜 (gyoryū)extinct reptile
Korean 어룡
  • 어룡 (eoryong)extinct reptile
Latin ichthyosaurus
  • ichthyosaurusextinct reptile
Polish ichtiozaur
  • ichtiozaurextinct reptile
Portuguese ictiossauro
  • ictiossauroextinct reptile
Romanian ihtiozaur
  • ihtiozaurextinct reptile
Russian ихтиоза́вр, р̀ыбоя́щер
  • ихтиоза́вр (ixtiozávr)extinct reptile
  • р̀ыбоя́щер (r̀ybojáščer)extinct reptile
Slovak rybojašter
  • rybojašterextinct reptile
Spanish ictiosaurio
  • ictiosaurioextinct reptile
Swedish fisködla, ichthyosaurie
  • fisködlaextinct reptile
  • ichthyosaurieextinct reptile
Tagalog isdambayawak
  • isdambayawakextinct reptile
Ukrainian іхтіоза́вр
  • іхтіоза́вр (ixtiozávr)extinct reptile
Cite this entry
APA

ichthyosaur. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/ichthyosaur

MLA

“ichthyosaur.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/ichthyosaur. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “ichthyosaur,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/ichthyosaur.

Source: ichthyosaur on Wiktionary, CC BY-SA 4.0.