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English definition of “organelle”

organelle

noun [C]     /ˌɔː.ɡənˈel/ US  /ˌɔːr-/ specialized
any structure, such as a nucleus or a chloroplast, that has a particular purpose inside a living cellSubstances and structures in the body
(Definition of organelle noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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