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noun Ecology.
  1. the biosphere including and modified by such human activities as agriculture, forestry, animal husbandry, urbanization, and industrialization.
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Origin of noosphere

1940–45; < French noösphere < Greek nóo(s) mind + French sphère sphere
Also called anthroposphere.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for noosphere


  1. philosophy the part of the biosphere that is affected by human thought, culture, and knowledge
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Word Origin

C20: from French noösphère, based on Greek noos mind
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