Definition of excretion in US English:



  • 1(in living organisms and cells) the process of eliminating or expelling waste matter.

    • ‘Treatment also tends to prolong the excretion of organisms in the stool and is associated with the development of resistant organisms.’
    • ‘You need water for all bodily processes, including digestion, waste excretion, circulation and even breathing.’
    • ‘While both urinary sodium excretion and blood pressure fell, the salt reduction may not have caused the fall in blood pressure.’
    • ‘If the kidneys are not doing their job of waste excretion properly, this can cause an overload on the liver and lead to some liver problems.’
    • ‘Partial reabsorption is followed by renal excretion of conjugated metabolites.’
    • ‘Pharmacologic control of hypertension reduces urine protein excretion and slows progression of the disease.’
    • ‘It is of particular concern with agents that are metabolized to an active metabolite with significant renal excretion.’
    • ‘We accounted for factors that may be associated with nondietary exposure, and the metabolism and excretion of the residues.’
    • ‘There is little evidence of virus excretion in urine or faeces.’
    • ‘Precipitant drugs modify the object drug's absorption, distribution, metabolism, excretion or actual clinical effect.’
    • ‘A normal study reveals immediate increased hepatic uptake with rapid excretion by the cardiac blood pool.’
    • ‘Furthermore, healthy persons taking chitosan have not shown clinically significant increases in fecal fat excretion.’
    • ‘Most carbohydrates appear to be wasted through excretion or stored as fat.’
    • ‘The bound Hg is then removed from the organism by natural excretion.’
    • ‘As a result, excretion of nitrogenous waste is reduced, and fluid and electrolyte balances cannot be maintained.’
    • ‘In most cases of gout decreased urinary excretion of urate is the most common metabolic abnormality.’
    • ‘The liver removes it from the blood, chemically modifies it, and secretes it into the bile for excretion.’
    • ‘In high dosages, aspirin tends to increase uric acid excretion, while lower dosages may cause its retention.’
    • ‘Hepatic metabolism and the subsequent excretion of toxins are the primary means of detoxification in the body.’
    • ‘In the eukaryotic cell there are a number of places where specialized tasks, such as digestion of nutrients and excretion of wastes, take place.’
    expulsion, ejection, discharge, passing, elimination, voidance, voiding, emptying, emptying out, purging, draining
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    1. 1.1 A product of excretion.
      ‘bodily excretions’
      • ‘Lassa fever spreads by human to human contact, transmission occurring through contact with an infected person's blood, tissue, secretions, or excretions of an individual infected with the Lassa virus.’
      • ‘The guidelines point out that you can only transmit the disease if you carry virus particles with you and you can only pick up and transmit the virus by having close contact with infected animals or their excretions.’
      • ‘We are the Mr Clean society - devoted to eradicating every natural body odour and euphemizing every body function and its excretions.’
      • ‘Infected dogs also shed the virus through bodily secretions and excretions.’
      • ‘Overnight, the margin for error was reduced to almost zero, since nobody wants to overtake his own bodily excretions as he reaches terminal velocity.’
      • ‘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.’
      • ‘And as one might imagine, an area that walruses use to rest between feedings is riddled with a substantial amount of walrus excretions.’
      • ‘Direct contact with secretions and excretions, especially faeces from infected birds.’
      • ‘These materials include all body fluids, secretions, and excretions except sweat, regardless of whether they contain visible blood, mucous membranes, and nonintact skin.’
      • ‘Entering buildings that are rarely opened or only seasonally opened may also result in exposure to mice and their excretions, contributing to infection.’
      • ‘Chen is keeping a detailed record of his daily life, work, volume of water consumed, excretions and feelings of hunger, so as to provide first-hand data for future medical research.’
      • ‘Susceptible birds become infected when they have contact with contaminated excretions or surfaces that are contaminated with excretions.’
      • ‘These early materials were made from naturally occurring compounds such as animal excretions, pastes made from burnt wood, and natural deposits of antimony and lead ore.’
      • ‘This increases the likelihood of spreading diseases between animals by direct contact and through eating bait contaminated with disease causing agents shed in feces, saliva or other excretions.’
      • ‘Nevertheless, the number of viable individuals steadily decreases over time as the level of nutrients decrease and the levels of toxic excretions increase.’
      • ‘Because they have to swallow a radioactive capsule, their excretions are slightly radioactive.’
      • ‘They should be worn when the worker will come in contact with blood, body fluids, secretions and excretions, or with items that have been contaminated with these fluids.’
      • ‘For example, Zimmerman implies that the excretions of wild creatures in the forest is no different from that of dogs.’
      • ‘The precursors of perfection in yoga, they say, are lightness and healthiness of the body, absence of desire, clear complexion, pleasantness of voice, sweet odor and slight excretions.’
      • ‘Bodily excretions, for example, can be seen not merely as different but as disgusting.’
      production, discharge, emission, exudation, ooze, oozing, leakage, leaching, emanation, giving off, release, sending out
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Early 17th century: from French excrétion or Latin excretio(n-), from excernere ‘sift out’ (see excrete).