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English definition of “secretion”

secretion

noun [C or U] uk   /sɪˈkriː.ʃən/ specialized us  
the process by which an animal or plant produces and releases a liquid, or the liquid produced: The excessive secretion of gastric juices in the gut causes ulcers. toxic secretionsPhysical and chemical processes
(Definition of secretion from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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