English Lexicon

Cenozoic

/ˌsiː.nəˈzoʊ.ɪk/
adjectivenounCEFR C2 (Proficient)Top #45000 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Relating to the current geological era, which began about 66 million years ago and is characterized by the dominance of mammals, birds, and flowering plants.

    "Scientists study the Cenozoic fossils found in the sedimentary rock layers."
As noun
  1. 1

    The Cenozoic era, the most recent of the three major subdivisions of animal history.

    "Major tectonic and climatic changes occurred throughout the Cenozoic."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Greek words kainos meaning new and zoe meaning life, coined in the 19th century by British geologist John Phillips. It was created to designate the geological era characterized by the dominance of modern forms of life.

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