Excretum

Origin

From , neuter singular of excrētus.

Full definition of excretum

Noun

1. Singular of en
• 1904, w, A Manual and Dictionary of the Flowering Plants and Ferns, Tannin is contained in many plants and parts of plants; it often occurs in the cells of growing parts, and is then apparently useful in the metabolism. It very often occurs as an excretum in the bark and elsewhere, and it is such parts that are chiefly used as sources of it for commercial purposes.
• 1914, John Alan Murray, The Chemistry of Cattle Feeding and Dairying, Silica is found in largest quantity in the stems and leaves and in the husks of grain—always in the exterior portions—and is regarded by botanists as of the nature of an excretum.
• 1917, w, The Nutrition of Farm Animals, Heat is essentially an excretum to be gotten rid of. ... The remainder is virtually expended in the “work of digestion” and converted into heat, and this heat, since not needed by the animal, becomes an excretum and is gotten rid of. ... In other words, there is for each animal and for each ration a certain temperature above which the heat produced becomes in part an excretum, to be gotten rid of by radiation and evaporation.
• 1924, Jons August Fries; Winfred Waite Braman; Donald Cameron Cochrane, Relative Utilization of Energy in Milk Production and Body Increase of Dairy Cows, The daily growth and loss of hair plus the epithelial offal, or dandruff, may be considered either as a gain of substance together with other forms of production, or as an excretory product. Since in the dairy cow this material is not a desired product, is not accumulative on the animal, and can not, like protein and fat, be again metabolized as a nutrient either in or out of the animal body, it has seemed wisest to treat it as an excretum. ... The milk of the cow may be considered in the same light as body gain, in which case the energy of the excreta must be corrected for the potential energy of the milk protein. On the other hand it may be considered as a product in a sense apart from the body which, being neither body gain nor an excretum, is not involved in the computation of metabolizable energy. ... No. 2. The same as No. 1 except that the heat of fermentation is treated as an excretum.
• 1926, Harold Batty Shaw, Uræmia: Past and Present Conceptions, Uræmic symptoms are rather due not to one excretum being retained, for urea, the popular miscreant, even in excessive quantity in the blood cannot cause uræmia—but to the combination of all the excreta, despite the fact that no one has shown that the urine of a normal person or of a so-called uræmic person is toxic to animals; ...
• 1972, Juraj Tölgyessy; Tibor Braun; Miroslav Kyrš, Isotope Dilution Analysis, A biologist studying the degradation of a compound in an organism can introduce the compound in a labelled form into the organism. The specific activity of the compound (S₀) is known. After any time desired he can take an excretum or tissue of interest.
• 1974, Georgii Evgen’evich Shul’man, Life Cycles of Fish: Physiology and Biochemistry, It is of interest to note that anaerobic decomposition of glycogen followed by "protective synthesis" of the products of glycolysis that are toxic for the organism results in the production of fat in parasitic worms and some protozoans (Brandt, 1951; Read, 1961; Ginetsinskaya and Dobrovol'skii, 1 963; Polyakova and Soprunov, 1963; Polyanskii, 1963). However, in this case it is an excretum and is generally not involved in the energy metabolism of these animals.
• 2005, w:Otto Weininger, Sex and Character: An Investigation of Fundamental Principles Chapter Judaism, Truly, chemistry can only cope with the excrements of living matter: after all, dead matter itself is only an excretum of life.
• 2016, Anthony Lioi, Nerd Ecology: Defending the Earth with Unpopular Culture, To borrow terms from Judd Apatow’s seminal Freaks and Geeks, nature is related to culture as freak to geek: failure of substance, or freakishness, naturally leads to a failure of taste, or geekishness. These failures are pathologized as “loser” moves toward “effluvium”: the failed individual becomes a biological waste product, an excretum of a diseased body.