n. An enzyme that chemically reduces its substrate.
The Century Dictionary and Cyclopedia
n. A reducing ferment.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an enzyme that catalyses the biochemical reduction of some specified substance
Word Usage
"Because neonates have both an immature NADH-dependent methemoglobin reductase system and higher levels of fetal hemoglobin,11-12 they are more susceptible to the oxidative stresses which can be seen with phenazopyridine."