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reducer

1 8.3

A chemical that gives electrons to another substance to change it

noun
/rɪˈdjuːsər/

Specialized

: agente reductor

Examples

The way the title functions both as an oxygen reducer and as adding gasoline is very clever.

Blog text (15)
When it goes into formation, fluid used for hydraulic fracturing is more than 90 percent water, almost 9 percent sand, and less than half a percent of chemical additives that serve as friction reducers, scale inhibitors, iron controls, and biocides.

Academic text (2011)
In photography, a reducer can effectively decrease the density of a negative, helping to enhance the final image.
The chemist used a special reducer to lower the concentration of the solution during the experiment.
To create a lighter print from the original negative, a photographer applied a reducer to make necessary adjustments.

Synonyms

reducing agent

vsreducer

Specialized

5.8

A substance that gives electrons to another substance in a chemical reaction

is mainly a photography term for lowering negative or print density

reductant

vsreducer

Specialized

9.1

A chemical that gives electrons to another substance during a reaction

is primarily a photographic chemical for lowering negative or print density

Antonyms

oxidizer

Specialized

3 7.4

A chemical that helps something burn by giving oxygen

How Much

eliminator

4 5.7

reducer

Specialized

1 8.3

minimizer

1 5.8

Surface Forms

reducer singular

reducers plural

Morphology

reducer = reduce (transparent) = reduce + er

Agent/instrument noun from 'reduce' + '-er'; the photographic/chemical specialization does not change the transparent derivation.

Etymology

Reducer comes from the verb reduce (from re- 'back' and ducere 'to lead'), giving the basic idea 'to bring down' or 'make less'. A helpful way to remember a chemical reducer is that it 'brings down' the other substance in a change, so it makes that substance less in one chemical way.