Definition of Reducer

1. Noun. 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.

Exact synonyms: Reducing Agent, Reductant
Generic synonyms: Chemical Agent
Specialized synonyms: Hydrazine
Derivative terms: Reduce, Reduce

2. Noun. Pipefitting that joins two pipes of different diameter.
Generic synonyms: Pipe Fitting, Pipefitting

Definition of Reducer

1. n. One who, or that which, reduces.

2. n. A contrivance for reducing the dimensions of one part so as to fit it to another, as a reducing coupling, or a device for holding a drilling a chuck.

Definition of Reducer

1. Noun. Something that reduces. ¹

¹ Source:

Definition of Reducer

1. one that reduces [n -S] - See also: reduces

Reducer Pictures

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Lexicographical Neighbors of Reducer

reduce to rubble
reduced cat
reduced cats
reduced circumstances
reduced enamel epithelium
reduced eye
reduced glutathione
reduced haematin
reduced haemoglobin
reduced instruction set computer
reduced instruction set computing
reduced interarch distance
reducer (current term)
reducible hernia
reducing agent
reducing agents
reducing diet
reducing enzyme
reducing sugar

Literary usage of Reducer

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Photographic Journal of America: The Oldest Photography Magazine in America (1916)
"I believe I have discovered the formula for such a reducer, and would like to pass it ... We all know the special characteristic of the persulphate reducer ..."

2. Wilson's Photographic Magazine (1902)
"The most popular reducer—as it is the simplest and most convenient in working— is ... The hypo in this reducer should be used in a fairly weak solution. ..."

3. The American Amateur Photographer (1903)
"The note on iodine as a reducer on page 561 of our December number could hardly be more ... To make the reducer, take as much water as will cover the plate, ..."

4. The Chemical News and Journal of Industrial Science (1908)
"weak reducing agents ; this has the advantage that a strong reducer like SnCl2 can be estimated in presence of a weak one like FeCl2. ..."

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