Definition of secretion in English:


Syllabification: se·cre·tion
Pronunciation: /siˈkrēSHən


  • 1A process by which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion.
    More example sentences
    • Status of various immune cells and intracellular secretion of cytokines were assessed by flow cytometry.
    • Other drugs excreted via anionic tubular secretion have not been evaluated.
    • Serous cell transport of urea may be analogous to secretion of uric acid, the major antioxidant in nasal secretions.
  • 1.1A substance discharged by secretion.
    More example sentences
    • These infant teeth are used to scrape fatty secretions and other nourishing substances from the female's reproductive organs.
    • Nausea lessens as the flow of saliva, bile and gastric secretions picks up.
    • It also controls food intake, regulates body temperature, and hormonal secretions.


mid 17th century: from French sécrétion or Latin secretio(n-) 'separation', from secret- 'moved apart', from the verb secernere.

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