reducer

/rɪˈdusər/

/rɪˈdusə/

Other forms: reducers

Definitions of reducer

1. noun

   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
   synonyms: reducing agent, reductant

   types:

   hydrazine

   a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels

   type of:

   chemical agent

   an agent that produces chemical reactions
2. noun

   pipefitting that joins two pipes of different diameter
   type of:

   pipe fitting, pipefitting

   fitting consisting of threaded pieces of pipe for joining pipes together