devaluation - a) a reduction in the amount or fineness of a metal, esp. gold, officially designated as the standard of value of a monetary unit; b) an official lowering of the exchange value of a currency with reference to other currencies; c) a lessening in value, importance, etc.

a yellow to dark brown, addicting, narcotic drug prepared from the juice of the unripe seed capsules of the opium poppy, which contains such alkaloids as morphine, codeine, and papaverine, and is used as an intoxicant and medicinally to relieve pain and produce sleep.

(fig.) anything that has a tranquilising or stupefying effect.