from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A sand or sediment having a dark greenish color caused by the presence of glauconite.

from The Century Dictionary.

  • noun A sandstone containing grains of glauconite, which impart to it a greenish hue.
  • noun In geological classification, one of certain subdivisions of the Cretaceous system.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Geol.) A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green color, mixed with sand and a trace of phosphate of lime.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun geology A greenish sandstone containing glauconite

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

  • noun an olive-green sandstone containing glauconite


Sorry, no etymologies found.


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  • "The London Loop by David Sharp continued the process of opening up the suburbs, linking patches of woodland, riverside paths, tracks across chalk and greensand."

    London Orbital by Iain Sinclair, p 83 of the Penguin paperback edition

    January 26, 2012