Farmer's reducer en · NOUN
Etymology
Named after Howard Farmer.
Meanings
- (countable, uncountable) A mixture of sodium thiosulfate with the bleaching agent potassium ferricyanide, used to reduce the density of a negative or gelatin silver print.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Farmer's reducers | Number=Plur | lexicographic |