• Webster's Revised Unabridged Dictionary
    • n Depurator One who, or that which, cleanses.
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Century Dictionary and Cyclopedia
    • n depurator One who or that which cleanses. Specifically
    • n depurator An apparatus designed to assist the expulsion of morbid matter through the excretory ducts of the skin. This is accomplished by withdrawing from the surface of the body the natural pressure of the air.
    • n depurator A machine for cleansing and preparing cotton for spinning, invented in France.
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In literature:

At this stage of the disease it is right to assist the depurative work of nature.
"On the cattle plague: or, Contagious typhus in horned cattle. Its history, origin, description, and treatment" by Honoré Bourguignon
Because they are permanently relaxing and stimulating, and depurate the whole system.
"The American Reformed Cattle Doctor" by George Dadd
These must be gotten rid of by depurative medicines.
"A System of Practical Medicine by American Authors, Vol. I" by Various

In science:

Besides ISR, other radiative corrections or specific uninteresting effects can be depurated from the measurements in the unfolding procedure.
Precision Physics at LEP
Forward-backward, left-right and polarization asymmetries, unlike the widths, are depurated, as said above, of the effects of QED and QCD corrections and, like σ0 had , refer to pure Z -boson exchange.
Precision Physics at LEP
V +S (s) is the soft+virtual K -factor of eq. (106) (provided that the substitution me → mf is performed in the collinear logarithm) and δf s,r is the residual correction factor including sub-leading terms as obtained after depuration of leading logarithms from the complete O(α) results.
Precision Physics at LEP