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definitions

permaculture

[pur-muh-kuhl-cher]
noun
  1. a system of cultivation intended to maintain permanent agriculture or horticulture by relying on renewable resources and a self-sustaining ecosystem.
Related formsper·ma·cul·tur·ist, per·ma·cul·tur·al·ist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for permaculture

permaculture

noun
  1. the practice of producing food, energy, etc, using ways that do not deplete the earth's natural resources

Word Origin for permaculture

C20: coined by Bill Mollison (born 1928), Australian ecologist, from perma (nent agri) culture
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
Word Origin and History for permaculture
n.

by 1978, from permanent + agriculture or culture.

Online Etymology Dictionary, © 2010 Douglas Harper