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English definition of “Cretaceous”

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Cretaceous

adjective uk   /krɪˈteɪ.ʃəs/ us    /kretˈeɪ-/ specialized
from or referring to the period of time between around 144 and 65 million years ago, in which plants with flowers first appeared: the Cretaceous period Cretaceous rocks
the Cretaceous
noun [S] uk   us  
the Cretaceous period
(Definition of Cretaceous from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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