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peat moss

noun
1.
Also called bog moss. any moss, especially of the genus Sphagnum, from which peat may form.
2.
such moss after it has been dried, used chiefly as a mulch or seedbed, for acidification.
Origin of peat moss
1225-1275
1225-75 for earlier sense; 1870-80 for def 1; Middle English petemos (in placename) peat bog
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for peat moss
Historical Examples
  • However, I have found that the best storage conditions for all scionwood that I have yet discovered is in the use of peat moss.

  • I packed them in peat moss and sand and treated them in various ways, and finally packed them in fresh hardwood sawdust.

  • There is a quantity of peat moss on the slopes at the foot of these mountains, often scored deeply by the numerous watercourses.

    Across Iceland William Bisiker
  • They took a quantity of the article which they manufactured, peat moss litter, and laying it on the wounds tied bandages over it.

  • Behind Krarup Kro lay a peat moss, dark with black turf-stacks and dangerous deep pits.

    Norse Tales and Sketches Alexander Lange Kielland
  • But there exists one serious objection to the use of peat moss as litter for young pigs.

    The Pig Sanders Spencer
  • This peat moss is a comparatively new thing in this country, and is used in place of straw for bedding horses.

    Mushrooms: how to grow them William Falconer
  • During the winter there should be about 10 inches of dry litter in the form of straw, peat moss or shavings mixed with the straw.

    A Living from the Land William B. Duryee
  • The soil of Ungava consists principally of decayed lichens, which form a substance resembling the peat moss of the Scottish moors.

  • These box-stalls to have half doors, if possible, opening into a small paddock and floored with dirt or peat moss.

    Riding and Driving Edward L. Anderson
British Dictionary definitions for peat moss

peat moss

noun
1.
any of various mosses, esp sphagnum, that grow in wet places in dense masses and decay to form peat Also called bog moss See also sphagnum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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peat moss in Science
peat moss  
Any of various mosses of the genus Sphagnum, growing in very wet places, especially bogs, around the world. The leaves of peat moss have large dead cells surrounded by smaller living ones that contain chloroplasts. The walls of the dead cells are perforated and readily absorb water, up to 20 times their dry weight. The walls also contain phenol compounds that resist decay and have antiseptic properties. Peat moss releases hydrogen ions that increase the acidity of the water in bogs. Because of its ability to absorb liquids, peat moss is sometimes used as diaper material by traditional peoples and was once used in making bandages. Peat moss is now used primarily to increase the water-holding capacity of soil. Also called sphagnum. See more at bog.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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6
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