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English definition of “ectoplasm”

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ectoplasm

noun [U] uk   /ˈek.tə.plæz.əm/ us    /-toʊ-/
specialized biology the outer layer of particular types of cell a substance that is believed to surround ghosts and other creatures that are connected with spiritual activities
(Definition of ectoplasm from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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