Definition of excretion in English:


Line breaks: ex|cre¦tion
Pronunciation: /ɪkˈskriːʃ(ə)n
, ɛk-/


[mass noun]
  • 1(In living organisms and cells) the process of eliminating or expelling waste matter.
    More example sentences
    • The bound Hg is then removed from the organism by natural excretion.
    • In the eukaryotic cell there are a number of places where specialized tasks, such as digestion of nutrients and excretion of wastes, take place.
    • There is little evidence of virus excretion in urine or faeces.
  • 1.1 [count noun] A product excreted by a living organism or cell: bodily excretions
    More example sentences
    • Infected dogs also shed the virus through bodily secretions and excretions.
    • They're in a big apartment building which looks like an English housing estate from the outside but is clean, the lifts work, and there are no bodily excretions in sight or smell.
    • Overnight, the margin for error was reduced to almost zero, since nobody wants to overtake his own bodily excretions as he reaches terminal velocity.


early 17th century: from French excrétion or Latin excretio(n-), from excernere 'sift out' (see excrete).

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