reductant
1. [ noun ] (chemistry) 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 slackened silver
Synonyms: reducer reducing_agent
Related terms: chemical_agent hydrazine deoxidize
Similar spelling:   reductio
  reductive
  reduction
  reductase
  reductivism
  reductionist
  reductionism
  redaction
  redact
  reduced