Dictionary.com
definitions
  • synonyms

mutualism

[myoo-choo-uh-liz-uh m]
See more synonyms for mutualism on Thesaurus.com
noun
  1. a relationship between two species of organisms in which both benefit from the association.
  2. the doctrine that the interdependence of social elements is the primary determinant of individual and social relations, especially the theory that common ownership of property, or collective effort and control governed by sentiments of brotherhood and mutual aid, will be beneficial to both the individual and society.
  3. Sociology. the force or principle of mutual aid.
Show More

Origin of mutualism

First recorded in 1860–65; mutual + -ism
Related formsmu·tu·al·ist, nounmu·tu·al·is·tic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mutualistic

mutualism

noun
  1. another name for symbiosis
Show More
Derived Formsmutualist, noun, adjectivemutualistic, adjective
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 mutualistic

adj.

1885, from mutualist "advocate of mutualism" (1848); see mutualism.

Show More

mutualism

n.

1849, in reference to the doctrine of French anarchist/socialist Pierre-Joseph Proudhon (1809-1865), from French mutuellisme. In biology, from 1876, from mutual + -ism.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

mutualistic in Medicine

mutualism

(myōōchōō-ə-lĭz′əm)
n.
  1. A symbiotic relationship in which both species benefit.
Show More
Related formsmu′tu•al•istic adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

mutualistic in Science

mutualism

[myōōchōō-ə-lĭz′əm]
  1. A relationship between two organisms in which each of the organisms benefits.♦ In obligate mutualism the interacting species are interdependent and cannot survive without each other. The fungi and algae that combine to form lichen are obligate mutualists.♦ In the more common facultative mutualism the interacting species derive benefit without being fully dependent. Many plants produce fruits that are eaten by birds, and the birds later excrete the seeds of these fruits far from the parent plant. While both species benefit, the birds have other food available to them, and the plants can disperse their seeds when the uneaten fruit drops. Compare amensalism commensalism parasitism.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.