Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Biology A close, prolonged association between two or more different organisms of different species that may, but does not necessarily, benefit each member.
- n. A relationship of mutual benefit or dependence.
Century Dictionary and Cyclopedia
- n. Union for life of certain organisms, each of which is necessary to the other; an intimate vital consociation, or kind of consortism, differing in the degree and nature of the connection from inquilinity and parasitism, as in the case of the fungus and alga which together make up the so-called lichen, or of the fungus Mycorrhiza and various Cupuliferæ. See Lichenes, Mycorrhiza. Also called commensalism.
Wiktionary
- n. A relationship of mutual benefit.
- n. biology A close, prolonged association between two or more organisms of different species, regardless of benefit to the members.
- n. The state of people living together in community.
GNU Webster's 1913
- n. (Biol.) The living together in more or less imitative association or even close union of two dissimilar organisms. In a broad sense the term includes parasitism, or antagonistic symbiosis or antipathetic symbiosis, in which the association is disadvantageous or destructive to one of the organisms, but ordinarily it is used of cases where the association is advantageous, or often necessary, to one or both, and not harmful to either. When there is bodily union (in extreme cases so close that the two form practically a single body, as in the union of algæ and fungi to form lichens, and in the inclusion of algæ in radiolarians) it is called conjunctive symbiosis; if there is no actual union of the organisms (as in the association of ants with myrmecophytes), disjunctive symbiosis.
WordNet 3.0
- n. the relation between two different species of organisms that are interdependent; each gains benefits from the other
Etymologies
- From Ancient Greek συμβίωσις (sumbiōsis, "living together"). (Wiktionary)
- Greek sumbiōsis, companionship, from sumbioun, to live together, from sumbios, living together : sun-, syn- + bios, life; see gwei- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“I often wonder what kind of science career she might have had, had she been born later -- did you know she was the first to identify lichen as two organisms living in symbiosis?”
“They may be said to live in symbiosis with their environment.”
“Rather, they recognize the inherent conflicts that arise among the demands of the various stakeholders as well as the need to endeavor to attain "symbiosis" - that is, interdependence and mutual benefit-among the various stakeholder groups.”
“The domestic symbiosis is tripartite – Neo-Cons, Born Again Zionists, Corporate Fascists.”
“But back in the here and now, not only am I finding it very hard to come up with a feminism that sits comfortably with being transsexual, but I’m also starting to wonder if such a symbiosis is even possible.”
“And before I read this book I knew nothing about wild mushrooms, how they live in symbiosis with trees and can’t be cultivated.”
“The relationship is intuitive, connecting the two in symbiosis.”
The Huffington Post: Spread ArtCulture: Patricia Piccinini's World of Creatures Great & Small
“There's the winter scenes, and the magical and useful animal companions with whom the protag lives in symbiosis.”
“Building on the notion of symbiosis in nature, highly interconnected industrial networks using wastes as process inputs (industrial symbioses) should more closely mimic the parsimony of closed-loop natural systems.”
“In that story, I frequently referred to one or the other of the partners in the biological relation called symbiosis as a symbiote.”
Lists
These user-created lists contain the word ‘symbiosis’.
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GRE 2014
abate, abdicate, abase, aberrant, abeyance, abhor, abjure, abortive, abound, abrasive, abreast, abridge and 1577 more...
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Words build meanings from origins( et...
These come from gamma meditation ,I think.
discursive, exogenous, machinations, purportedly, sumptuous, congruity, cantankerous, incongruous, festoon, hessian, ratiocinative, stratigraphic and 2046 more...
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Logolepsy
"Luciferous Logolepsy is a collection of over 9,000 obscure English words. Though the definition of an 'English' word might seem to be straightforward, it is not. There exist so many adopted, deriv...
Anschauung, Areopagus, Argus, Briarean, Dei gratia, Dei judicium, Deo volente, Duecento, Foehn, Geflugelte Worte, Gegenschein, Hakenkreuz and 9230 more...
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EU Buzz - single words (1+2+3)
1. Strictly EU terms with special European meaning used only in the EU
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2. Keywords central to the understanding of the EU (people working for the EU are usually able to give thematic...acceleration, action, additionality, administrator, agenda, agricultural, agri-environmental, agriflation, agri-food, applicant, approach, assent and 1325 more...
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cicatrix
scar tissue
minatory, naira, Cluniac, embracive, prolix, hierophant, timorous, adduce, veracious, dysphoric, sang-froid, vitiate and 503 more...
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Notable
undulate, priaprism, alphanumeric, conjure, love, roughshod, helpless, palatial, chortle, swimmingly, mustachioed, symbiotic and 21 more...
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syn-, sym-, syl-
united; acting or considered together
sympathy, syllogism, synthesis, synonym, synaesthesia, synecdoche, synagogue, syzygy, symbiosis, system, idiosyncratic, idiosyncracy and 3 more...
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man gre
abase, abeyance, abreast, abscission, abscond, abyss, accede, accretion, acerbic, acidulous, acumen, adulterate and 483 more...
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Earth-Friendly Organic Produce
An Ecosystem of earth/life-related words.
blueskycloudform, sojourn, reuse, reduce, compostable, habitat, ecology, bionomics, Eco-Art, sustainability, forest garden, biosystems and 47 more...
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gre2
aberrant, aberration, aboveboard, abrasive, abstemious, acme, admonish, affable, affluent, alacrity, allegory, alleviate and 1908 more...
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logos's list
A poor pathetic thing, but mine own.
invidious, lugubriousness, vilify, noisome, synastry, front and center, declension, conjugation, regnal, diphthong, circumlocution, bishopric and 141 more...
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words that are fun to say
pickle, tickle, thrombocytopenia, symbiosis, mitochondria, buttock, serendipity
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science (collective opinion)
random scientific terms from a group of one hundred 16-18 year olds to choose 100 words that, in their collective opinion, represent crucial factors and concepts influencing trends in science today...
acid, base, aggregation status, analysis, antimatter, apparatus, atmosphere, atom, bacteria, Big Bang, biodiversity, bioethics and 90 more...
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Mat8iou's interesting words
Words I've come across & want to remember.
bloviation, elginism, panegyric, infandous, boke, pangram, quine, pareto principle, panopticon, snib, escutcheon, bokeh and 129 more...
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Lively Words
quick, quicksilver, cwic, quitch grass, cwice, vivify, viviparous, viper, weever, wyvern, viand, victual and 148 more...
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gcherches's Words
serendipity, roadrunner, inner child, coagulant, esquire, vicissitude, idiot savant, mitigation, affirmation, affirmative, diatribe, affirmative action and 185 more...
Tweets
Looking for tweets for symbiosis.

yarb Bah, wikipedia. The work of ideologues and heathens!
Actually that is interesting. Thank you, signor. Aug 9, 2008
Prolagus As Wikipedia well explains, symbiosis is now generally used in a wider sense... Symbiosis sensu stricto can be more narrowly called mutualism. Aug 9, 2008
yarb Isn't reciprocity the essence of symbiosis? Parasitic and symbiotic relationships are mutually exclusive. Aug 9, 2008
Prolagus Parasitic relationships are a kind of symbiosis, too - a kind with no reciprocity. Aug 9, 2008
chained_bear Not necessarily, no. In fact if you have two organisms each consuming the other, it wouldn't be symbiotic because one or both would die as a result. But you might be thinking, for example, of those little fish that eat the parasites off sharks. The little fish get fed, and the shark gets rid of its parasites. Aug 9, 2008
super-logos Isn't it a feeding off of one another? Aug 8, 2008
Prolagus No, seriously, jmp! The word symbiosis, for many reasons, is now used again in its literal meaning of "living together".
I would not insist, but this is a field I know quite well - and I love. :-) Jun 22, 2008
johnmperry No, I think it's the opposite. Symbiosis is the case where the whole is greater than the sum of its parts. Jun 22, 2008
Prolagus Well spotted. Symbiotic has a more correct definition, while this one is more naïve and old-fashioned. Jun 22, 2008
johnmperry Why is the head definition for this word the opposite of the head definition for its adjective, symbiotic? Jun 22, 2008