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endosymbiont

[ en-doh-sim-bee-ont, -bahy- ]
/ ˌɛn doʊˈsɪm biˌɒnt, -baɪ- /
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noun
a symbiont that lives within the body of the host.
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Also en·do·sym·bi·ote [en-doh-sim-bee-oht, -bahy-]. /ˌɛn doʊˈsɪm biˌoʊt, -baɪ-/.

Origin of endosymbiont

First recorded in 1935–40; endo- + symbiont
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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