Definition of Miocene in English:



  • 1Relating to or denoting the fourth epoch of the Tertiary period, between the Oligocene and Pliocene epochs.

    • ‘It is evident that the southward progradation of the Indus Delta and initial development of the Indus submarine fan started by at least end Oligocene/beginning Miocene times.’
    • ‘This was a Paleogene collisional orogen, which underwent rapid and substantial extension in late Oligocene to early Miocene time, resulting in the subsidence of much of the region below sea level.’
    • ‘In Japan, decapods associated with coral reef deposits were described in Miocene and Pliocene and Pleistocene rocks.’
    • ‘Apatite fission-track analyses indicate latest Oligocene to earliest Miocene ages, and are likely to reflect the same exhumational event that controls the cooling ages of the metamorphic rocks below.’
    • ‘An Oligocene and early Miocene marine succession with a maximum aggregate thickness of 300 m accumulated on top of the erosion surface.’
    1. 1.1as noun the Miocene The Miocene epoch or the system of rocks deposited during it.


Mid 19th century: formed irregularly from Greek meiōn ‘less’ + kainos ‘new’.