nnoun.substancea 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 silverSynset:reducing agent reductant
Derivationally Related Form:reduce
Hypernyms:chemical agent
Inherited Hypernyms:reducing agentchemical agentagentcausal agentphysical entityentity
Inherited Hypernyms:reducing agentchemical agentagentsubstancematterphysical entityentity
Direct Hyponyms:hydrazine
nnoun.artifactpipefitting that joins two pipes of different diameterHypernyms:pipe fitting pipefitting
Inherited Hypernyms:reducerpipefittingfittingaccessorycomponentpartobjectphysical entityentity