The addition of hydrogen, removal of oxygen, or addition of electrons to an element or compound.

The term "reduction" was found in the following pages:

Instrument database: Varian Inc. (Part A) - Cary 4000 UV-Vis spectrophotometer
Trace element speciation for environmental analysis | EVISA's News
Instrument database: Hitachi - Science & Technology - LaChrom Elite L-2100 SMASH Pump
Link database: Chemical Fact Sheet: Vanadium
Instrument database: Jasco Inc. - CD-2095 Circular Dichroism Detector
Component database: CETAC Technologies - MCN-100 Microconcentric Nebulizer
Link database: Chemical Fact Sheet: Zinc
Instrument database: Retsch GmbH - Planetary Ball Mill PM 100
3rd Forensic Isotopic Ratio Mass Spectrometry Conference | EVISA's Agenda of Events
The effect of thermal treatment on the arsenic speciation in food | EVISA's News
Instrument database: Hitachi - Science & Technology - HG 310 Mercury Analyzer
Instrument database: Retsch GmbH - GRINDOMIX GM 300
Instrument database: Exeter Analytical, Inc. - CE-440 CHN/O/S Elemental Analyzer
Link database: The accumulation, distribution, and elimination of dietary arsenobetaine in Atlantic salmon and Atlantic cod,
Third International Conference on Remediation of Contaminated Sediments | EVISA's Agenda of Events
A new Selenium-containing compound, Selenoneine, found as the predominant Se-species in the blood of Bluefin Tuna | EVISA's News
Methylmercury in fish: FDA updates its advice for consumers | EVISA's News
Instrument database: Stuart - Aquatron A4000/A8000/A4000D Water still
Instrument database: Tekran Instruments Corporation - Series 2600 Mercury Analysis System
Instrument database: Thermo Scientific - iCAP Q ICP-MS