Eoceneadj.
/ˈiːəsiːn/ Geology.figurative.1856 C. Darwin Let. 17 June (1887) II. 73 His Geology also is rather eocene as I told him.1864 J. R. Lowell Fireside Trav. 103 These eocene periods of the day are not fitted for sustaining the human forms of life.1870 Daily Tel. 22 Sept. Its deep roots shot back into the eocene strata of civilisation.figurative.1877 R. D. Blackmore Erema II. xxxvi. 221 The calm deep eocene of British rural mind.
1. The epithet applied to the lowest division of the Tertiary strata, and to the geological period which they represent.
ΘΚΠ
the world > the earth > structure of the earth > age or period > [noun] > tertiary or Cainozoic > specific
Eocene1831
Pliocene1835
Miocene1842
post-Pliocene1852
Oligocene1856
Palaeocene1877
Palaeogene1882
Lutetian1895
Tortonian1931
the world > the earth > structure of the earth > age or period > [adjective] > tertiary or Cenozoic > Eocene
Eocene1831
Lutetian1895
the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > tertiary or Cenozoic > Eocene
London clay1830
Eocene1831
the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > tertiary or Cenozoic > Eocene
Eocene1831
1831 W. Whewell Let. in I. Todhunter William Whewell (1876) II. 111 I propose for your four terms 1 acene, 2 eocene, 3 miocene, 4 pliocene.
1833 C. Lyell Princ. Geol. (ed. 2) III. 54 The period next antecedent we shall call Eocene.
1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) vii. 174 The eocene group is characterised by a total absence of cycadeæ.
1878 T. H. Huxley Physiography (ed. 2) 214 The Eocene rocks once spread over the whole surface of this chalk.
2. quasi-n.
ΚΠ
1851 T. Wright & G. F. Richardson Introd. Geol. (new ed.) xi. 370 1. Upper Eocene. 2. Middle Eocene. 3. Lower Eocene.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2021).
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adj.1831