preglacialadj.
/priːˈɡleɪʃl/, /priːˈɡleɪsɪəl/, U.S. /priˈɡleɪʃ(ə)l/ Geology.
Designating or relating to the period before a glaciation, esp. the most recent (Weichsel or Devensian) glaciation; occurring or formed in such a period.
ΘΚΠ
the world > the earth > structure of the earth > age or period > [adjective] > quaternary > glacial or boreal
preglacial1855
boreal1876
sub-Atlantic1876
sub-boreal1876
Preboreal1924
Atlantic1935
1855 J. Phillips Man. Geol. 31 Tertiary or Cainozoic Series of Strata... Formations: Postglacial... Glacial... Preglacial.
1882 Standard 25 Aug. 2/4 He..felt inclined to view the river-drift man as having invaded Europe in pre-glacial times.
1952 W. J. Miller Introd. Hist. Geol. (ed. 6) xxiv. 466 The lakes of this remarkable group occupy pre-Glacial valleys.
1988 Nat. World Autumn 25/3 Many fish are still advancing north from their original preglacial strongholds.
1994 W.G. Dean in E. S. Rogers & D. B. Smith Aboriginal Ontario i. 6 Other pre-glacial lakes later in time profoundly affected the landscape of Northern Ontario.
Derivatives
preˈglacially adv. in a preglacial period.
ΘΚΠ
the world > the earth > structure of the earth > age or period > [adverb] > pre-glacial
preglacially1875
1875 Q. Jrnl. Geol. Soc. 31 61 The small thickness of preglacially weathered rock that the brief stay of the ice at these high elevations enabled it to remove.
1903 Jrnl. Geol. (Chicago) 11 675 To whatever state of maturity the valley development had attained preglacially, it was directly modified by the advent of the glacial epoch.
1990 A. S. Trenhaile Geomorphol. Canada vi. 114 The ice was able to remove deep, preglacially weathered material.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
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adj.1855