endosymbiosis

endosymbiosis

[en-doh-sim-bee-oh-sis, -bahy-]
noun Biology.
symbiosis in which one symbiont lives within the body of the other.

Origin:
1935–40; endo- + symbiosis

endosymbiotic [en-doh-sim-bee-ot-ik, -bahy-] , adjective
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World English Dictionary
endosymbiosis (ˌɛndəʊˌsɪmbɪˈəʊsɪs)
 
n
a type of symbiosis in which one organism lives inside the other, the two typically behaving as a single organism. It is believed to be the means by which such organelles as mitochondria and chloroplasts arose within eukaryotic cells
 
endosymbi'otic
 
adj

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