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:

Component database: PHOTONIS - Electron multipliers
Link database: Chemical Fact Sheet: Plutonium
Sulfur fuels the methylation of mercury | EVISA's News
Beryllium: Sampling and Analysis | EVISA's Agenda of Events
Link database: OSHA Method ID-206: ICP Analysis of Metal/Metalloid Particulates From Solder Operations
Instrument database: Retsch GmbH - Disc Mill DM 200
Man is significantly contaminating oceans with mercury | EVISA's News
Instrument database: Shimadzu Europe - ICPE-9000
Instrument database: Varian Inc. - Liberty Series II
ERM-CE101: A new CRM for assessing environmental quality through fish | EVISA's News
Huge Amounts of Toxic Mercury Found Hidden in the Arctic Permafrost | EVISA's News
Instrument database: Analytik Jena AG - Mercur - Atomic fluorescence spectrometer for mercury determination
Journals database: Environmental engineering and management journal
Component database: Marathon Scientific Consultants Inc. - MSIS - Multimode Sample Introduction System
Link database: Chemical Fact Sheet: Holmium
Instrument database: Analytik Jena GmbH - SPECORDŽ PLUS - UV/Vis Spectrophotometers
Selenomethionine shows promising results as a protective agent against Esophageal Cancer | EVISA's News
Arsenic-eating bacteria rewrite evolutionary history | EVISA's News
Natural dissolved organic matter plays dual role in cycling of mercury | EVISA's News
Instrument database: Teledyne Instruments Leeman Labs Inc. - Prodigy DC arc