Present participle: the process of removing sulfur from fuel, metals, or industrial gases.
From desulfurize + -ing. American English term describing the ongoing environmental protection practice.
Coal-burning power plants spent billions of dollars on desulfurizing equipment in the 1990s—some operators thought it was unfair, but it actually made them more efficient and prevented acid rain.
Complete word intelligence in one call. Free tier — 50 lookups/day.