Webster's 1828 Dictionary
REDUCING
ppr. Bringing back; bringing to a former state, or to a different state or form; diminishing; subduing; impoverishing.
Webster's 1913 Dictionary
REDUCING
REDUCING Re *du "cing (r *d "sng ),
Defn: a & n. from Reduce. Reducing furnace (Metal. ), a furnace for reducing ores. -- Reducing pipe fitting, a pipe fitting, as a coupling, an elbow, a tee, etc. , for connecting a large pipe with a smaller one. -- Reducing valve, a device for automatically maintaining a diminished pressure of steam, air, gas, etc. , in a pipe, or other receiver, which is fed from a boiler or pipe in which the pressure is higher than is desired in the receiver.
New American Oxford Dictionary
reducing agent
re duc ing a gent ▶noun Chemistry a substance that tends to bring about reduction by being oxidized and losing electrons.
Oxford Dictionary
reducing agent
re |du ¦cing agent ▶noun Chemistry a substance that tends to bring about reduction by being oxidized and losing electrons.
The Wordsmith Dictionary