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Definition of secretion noun from the Oxford Advanced Learner's Dictionary

secretion

noun
 
/sɪˈkriːʃn/
 
/sɪˈkriːʃn/
(specialist)
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  1. [uncountable] the process by which liquid substances are produced by parts of the body or plants
    • the secretion of bile by the liver
  2. [countable, usually plural] a liquid substance produced by parts of the body or plants
    • bodily secretions
    3. Word Originmid 17th cent.: from French sécrétion or Latin secretio(n-) ‘separation’, from secret- ‘moved apart’, from the verb secernere.
See secretion in the Oxford Advanced American DictionarySee secretion in the Oxford Learner's Dictionary of Academic English
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