US /ˈmaɪəˌsiːn/ UK /ˈmaɪəsiːn/
noun adj Freq #257126

Meanings

  1. 1
    noun

    the geological epoch from about 23 million to 5.3 million years ago, within the Neogene Period

    Several important ape fossils are known from deposits of the Miocene.

  2. 2
    adj

    relating to or formed during the Miocene epoch

    The museum displayed a Miocene primate jaw recovered from ancient sediments.

Thesaurus

Synonyms
1 noun · the geological epoch from... Miocene epoch
Word family
Related forms NeogenePlioceneOligocenegeological epoch

Etymology

Coined in 1831 by William Whewell for Charles Lyell from Greek meion, 'less,' + kainos, 'new or recent.' Lyell used it for strata containing a smaller proportion of living mollusc species than the later Pliocene; the modern epoch spans about 23 to 5.3 million years ago.

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