oxidantn.
/ˈɒksᵻd(ə)nt/, U.S. /ˈɑksəd(ə)nt/ Chemistry.
An oxidizing agent; = oxidizer n. 1. Cf. reductant n.
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oxidizer1850
oxidator1865
oxidant1868
1868 Chambers's Encycl. X. 22/2 Analysis by oxidation and reduction, when the quantity of the substance to be determined is found by the quantity of chlorine, bromine, iodine, or oxygen to which it is equivalent (regarded as an oxidant).
1884 Internat. Health Exhib. Official Catal. 62/2 Antiseptics, disinfectants, oxidants, and air-purifiers.
1930 M. Stephenson Bacterial Metabolism iii. 49 The position of a system..is determined by the Eh when [the concentration of] oxidant equals [that of] reductant.
1961 New Scientist 12 Oct. 110/1 Oxidants may include oxygen, air, chlorine,..and so on, and many combinations of fuels and oxidants are possible for fuel cell development.
1990 Atlantic July 87/1 Ontario Hydro is treating some of its coolant with hypochlorite, an oxidant that chews away at the soft parts of the organism.
This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022).
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n.1868- to do circles round
- to do civility
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