reducing agent

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reducing agent

[ri′düs·iŋ ‚ā·jənt]
(chemistry)
Also known as reducer.
A material that adds hydrogen to an element or compound.
A material that adds an electron to an element or compound, that is, decreases the positiveness of its valence.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.