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English definition of “endosperm”

endosperm

noun [U] uk   /ˈen.dəʊ.spɜːm/ us    /-doʊ.spɝːm/ specialized
the substance inside a plant seed that surrounds and provides food for the embryo as it develops
(Definition of endosperm from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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