Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


A reducing agent.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chem a reducing agent which as it is oxidized is capable of bringing about the reduction of another substance
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.reductant - a substance capable of bringing about the reduction of another substance as it itself is oxidized; used in photography to lessen the density of a negative or print by oxidizing some of the loose silver
chemical agent - an agent that produces chemical reactions
hydrazine - a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Pyrite is an excellent reductant, and consequently in many places the pyrite has been completely replaced by chalcopyrite, bornite and chalcocite (see figures 5 and 6).
But by using fenugreek seed extract as reductant Cu NPs were not oxidized to CuO NPs.
But surely AW, anyone made reductant after Brexit will be able to 'adapt' using their acquired Brexit freedoms to create new jobs by accessing the wider and growing markets outside of the EU?
[2] Redox photosensitizer: A component that initiates the photochemical one-electron transfer from a reductant to a catalyst.
Unused reductant sodium borohydride was consumed and removed with formaldehyde, and all thiol groups, including reduced and native ones, were detected after reaction with 5, 5'-dithiobis-(2-nitrobenzoic) acid (DTNB).
To establish the best condition for biofabrication of nano-Ag to get the large mass weight of nano-silver, the biofabrication reactions set up were prepared by using the different concentration of the precursor (0.5, 1.0, 2.0M) which prepared and added to the different reductant concentration (0.5, 5.0, 10.0 % v/v), then these mixtures were incubated at different temperature (30, 40 and 50[degrees]C) in ranges of pH (5.5-6) in light or dark conditions (Table 3), Box-Behnken modeling and the final results analysis were carried out using the Microsoft Excel 2007 and essential experimental design software by multiple regression analysis to evaluate the analysis of variance (ANOVA).
The oxidative composition has a pH less than 7.5 and a reductant composition has a pH greater than 7.