from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The period of time covering the physical formation and development of Earth, especially the period prior to human history.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the time of the physical formation and development of the earth (especially prior to human history)


Sorry, no etymologies found.


  • There were a few such cavernous ledges in the woods on my father's farm where one could retreat from a sudden shower, but less than a mile away there were two lines of them, one on Pine Hill and one on Chase's Hill, where the foundations of the earth were laid open, presenting a broken and jagged rocky front from ten to thirty or forty feet high, gnawed full of little niches and pockets and cavernous recesses by the never-dulled tooth of geologic time and affording dens and retreats where Indians and wild beasts often took refuge.

    My Boyhood


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