Mesozoic

M3E1S1O1Z10O1I1C3

adjective

Of a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.

UncommonScrabble 21
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

adjectiveMesozoic (comparative more Mesozoic, superlative most Mesozoic)

comparative more Mesozoic · superlative most Mesozoic

  1. geographyOf a geologic era within the Phanerozoic eon that comprises the Triassic, Jurassic and Cretaceous periods from about 230 to 65 million years ago, when life on earth was dominated by reptiles.
proper noun
  1. geographyThe Mesozoic era.

    The Mesozoic landscape of southeastern Utah can tell us much about the past, and it's one of the most intriguing and beautiful landscapes on Earth.

    2012, Chinle Miller, In Mesozoic Lands: The Mesozoic Geology of Arches and Canyonlands National Parks, Kindle edition
    1 more example

    The whole history of the earth is divided into five eras, with corresponding rock-systems. These are: 1. Archæan or Eozoic¹ era, embodied in the Laurentian system; 2. Palæozoic² era, embodied in the Palæozoic or Primary system; 3. Mesozoic³ era, recorded in the Secondary system; 4. Cenozoic,⁴ recorded in the Tertiary and Quaternary systems; and, 5. The Psychozoic era, or era of Mind, recorded in the recent system.

    1883, Joseph Le Conte, Elements of Geology: A Text-book for Colleges and for the General Reader, New York: D. Appleton and Company

Origin

From meso- + -zoic.

Full word history & related roots →

Translations

Chinese Mandarin 中生代
  • 中生代 (Zhōngshēngdài)Mesozoic era
Czech druhohory, mezozoikum
  • druhohoryMesozoic era
  • mezozoikumMesozoic era
Dutch mesozoïsch, Mesozoïcum
  • mesozoïschof era from 230 to 65 milion years ago
  • MesozoïcumMesozoic era
Estonian mesosoikum, keskaegkond
  • mesosoikumMesozoic era
  • keskaegkondMesozoic era
Finnish mesotsooinen, mesotsooinen maailmankausi
  • mesotsooinenof era from 230 to 65 milion years ago
  • mesotsooinen maailmankausiMesozoic era
French mésozoïque, Mésozoïque
  • mésozoïqueof era from 230 to 65 milion years ago
  • MésozoïqueMesozoic era
German Mesozoikum
  • MesozoikumMesozoic era
Greek μεσοζωικός, Μεσοζωικός
  • μεσοζωικός (mesozoïkós)of era from 230 to 65 milion years ago
  • Μεσοζωικός (Mesozoïkós)Mesozoic era
Hungarian mezozoikum
  • mezozoikumMesozoic era
Japanese 中生代
  • 中生代 (Chūseidai)Mesozoic era
Latin mēsozōicus
  • mēsozōicusof era from 230 to 65 milion years ago
Norwegian mesozoikum
  • mesozoikumMesozoic era
Polish mezozoiczny, mezozoik
  • mezozoicznyof era from 230 to 65 milion years ago
  • mezozoikMesozoic era
  • era mezozoicznaMesozoic era
Russian мезозо́йский, мезозо́й
  • мезозо́йский (mezozójskij)of era from 230 to 65 milion years ago
  • мезозо́й (mezozój)Mesozoic era
  • мезозо́йская э́ра (mezozójskaja éra)Mesozoic era
Spanish Mesozoico
  • MesozoicoMesozoic era
Swedish mesozoisk
  • mesozoiskof era from 230 to 65 milion years ago
Tagalog panggitnang kapanahunan
  • panggitnang kapanahunanMesozoic era
Ukrainian мезозо́йський, мезозо́й
  • мезозо́йський (mezozójsʹkyj)of era from 230 to 65 milion years ago
  • мезозо́й (mezozój)Mesozoic era
  • мезозо́йська е́ра (mezozójsʹka éra)Mesozoic era
Vietnamese đại Trung Sinh
  • đại Trung SinhMesozoic era

Rhymes & wordplay

Rhymes with Mesozoic

heroicstoicpaleozoicCenozoicproterozoicanechoicphanerozoiczoicAnthropozoicholozoicpreheroic
All rhymes →
Cite this entry
APA

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

MLA

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

Chicago

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

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