reducer

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. 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
• Syn:
reducing agent, reductant
• Derivationally related forms:
reduce (for: reductant), reduce
• Hypernyms:
chemical agent
• Hyponyms:
hydrazine
2. pipefitting that joins two pipes of different diameter
• Hypernyms:
pipefitting, pipe fitting

• Từ đồng nghĩa / Synonyms:
  reducing agent, reductant