What does Mesozoic mean?

Definitions for Mesozoic
ˌmɛz əˈzoʊ ɪk, ˌmɛs-, ˌmi zə-, -sə-Meso·zoic

Here are all the possible meanings and translations of the word Mesozoic.

Princeton's WordNet

  1. Mesozoic, Mesozoic era, Age of Reptilesadjective

    from 230 million to 63 million years ago

  2. Mesozoicadjective

    of or relating to or denoting the Mesozoic era

Wiktionary

  1. Mesozoicadjective

    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.

  2. Mesozoicnoun

    The Mesozoic era.

Webster Dictionary

  1. Mesozoicadjective

    belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology

    Etymology: [Meso- + Gr. life, fr. to live.]

  2. Mesozoicnoun

    the Mesozoic age or formation

    Etymology: [Meso- + Gr. life, fr. to live.]

Freebase

  1. Mesozoic

    The Mesozoic Era is an interval of geological time from about 252 to 66 million years ago. It is also called the Age of Reptiles, a phrase introduced by the 19th century paleontologist Gideon Mantell who viewed it as dominated by reptiles such as Iguanadon, Megalosaurus, Plesiosaurus and what are now called Pseudosuchia. Mesozoic means "middle life", deriving from the Greek prefix meso-/μεσο- for "between" and zōon/ζῷον meaning "animal" or "living being". It is one of three geologic eras of the Phanerozoic Eon, preceded by the Paleozoic and succeeded by the Cenozoic. The era is subdivided into three major periods: the Triassic, Jurassic, and Cretaceous, which are further subdivided into a number of epochs and stages. The era began in the wake of the Permian–Triassic extinction event, the largest well-documented mass extinction in Earth's history, and ended with the Cretaceous–Paleogene extinction event, another mass extinction which is known for having killed off non-avian dinosaurs, as well as other plant and animal species. The Mesozoic was a time of significant tectonic, climate and evolutionary activity. The era witnessed the gradual rifting of the supercontinent Pangaea into separate landmasses that would eventually move into their current positions. The climate of the Mesozoic was varied, alternating between warming and cooling periods. Overall, however, the Earth was hotter than it is today. Non-avian dinosaurs appeared in the Late Triassic and became the dominant terrestrial vertebrates early in the Jurassic, occupying this position for about 135 million years until their demise at the end of the Cretaceous. Birds first appeared in the Jurassic, having evolved from a branch of theropod dinosaurs. The first mammals also appeared during the Mesozoic, but would remain small—less than 15 kg —until the Cenozoic.

Chambers 20th Century Dictionary

  1. Mesozoic

    mes-o-zō′ik, adj. of the Secondary geological period, including the Triassic, Jurassic, and Cretaceous systems. [Gr. mesos, middle, zōē, life.]

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Numerology

  1. Chaldean Numerology

    The numerical value of Mesozoic in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of Mesozoic in Pythagorean Numerology is: 6

Examples of Mesozoic in a Sentence

  1. Wang Min:

    This new discovery vividly demonstrates how the interplay between natural and sexual selections shaped birds' tails from their earliest history, yuanchuavis is the first documented occurrence of a pintail in Enantiornithes, the most successful group of Mesozoic birds.

Images & Illustrations of Mesozoic

  1. MesozoicMesozoicMesozoicMesozoicMesozoic

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    not transmitting or reflecting light or radiant energy; impenetrable to sight
    • A. blistering
    • B. opaque
    • C. frantic
    • D. handsome

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