Wordnet 3.0
NOUN (1)
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, reducer, reductant]
WordNet (r) 3.0 (2006):
reductant
n 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,
reducer, reductant]