#hydrazine  a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels
  supertype:  reducing_agent__reducer__reductant  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 slackened silver
  part of:  rocket_fuel__rocket_propellant__rocket_propellent  an explosive charge that propels a rocket

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