• synonyms


  1. related to or caused by particular soil conditions, as of texture or drainage, rather than by physiographic or climatic factors.
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Origin of edaphic

< German edaphisch (1898); see edaphon, -ic
Related formse·daph·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for edaphic

Historical Examples

  • In every instance the groves are limited to a rocky clay soil, and edaphic factors obviously are of major importance.

    The Forest Habitat of the University of Kansas Natural History Reservation

    Henry S. Fitch

British Dictionary definitions for edaphic


  1. of or relating to the physical and chemical conditions of the soil, esp in relation to the plant and animal life it supportsCompare biotic (def. 2)
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Derived Formsedaphically, adverb

Word Origin

C20: from Greek edaphos bottom, soil
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

edaphic in Science


  1. Relating to soil, especially as it affects living organisms. Edaphic characteristics include such factors as water content, acidity, aeration, and the availability of nutrients.
  2. Influenced by factors inherent in the soil rather than by climatic factors.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.