preglacial

American  

[pree-gley-shuhl] / priˈgleɪ ʃəl /

adjective

Geology.

1. prior to a given glacial epoch, especially the Pleistocene.

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preglacial British  

/ priːˈɡleɪsɪəl /

adjective

1. formed or occurring before a glacial period, esp before the Pleistocene epoch

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Etymology

Origin of preglacial

First recorded in 1850–55; pre- + glacial

Example Sentences

See Examples For:

preglacial

Great as were the changes made by the carrying power of moving ice, still greater were those made in preglacial times; not, however, from the action of moving ice, but from running water.

From Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. by Elisha Gray

This fact explains, in part, why the glacier had little difficulty in altering the preglacial drainage, and how the change so effected became permanent.

From Drainage Modifications and Glaciation in the Danbury Region Connecticut State of Connecticut State Geological and Natural History Survey Bulletin No. 30 by Ruth Sawyer-Harvey

The preglacial course of Rocky River, as above outlined, is subject to possible modification in one minor feature, namely, the point where the east and west forks joined.

From Drainage Modifications and Glaciation in the Danbury Region Connecticut State of Connecticut State Geological and Natural History Survey Bulletin No. 30 by Ruth Sawyer-Harvey

Wherever the preglacial valleys were completely filled, the postglacial drainage followed lines which were altogether independent of them.

From The Geography of the Region about Devils Lake and the Dalles of the Wisconsin by Wallace W. Atwood

Where the stream follows its old course, it flows through a wide capacious valley, but where it was displaced, it found a new course on the broad flat which bordered its preglacial course.

From The Geography of the Region about Devils Lake and the Dalles of the Wisconsin by Wallace W. Atwood