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endometrial ablation
endometriosis
endometrium
endomitosis
endomorph
endonuclease
endoparasite
endopeptidase
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endosymbiotic hypothesis
en·do·sym·bi·o·tic hy·poth·e·sis


noun 
Definition:
 
theory of mitochondrial origin: a theory that the mitochondria and chloroplasts found within eukaryotic cells originated as free-living prokaryotic organisms
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