desulfur

or de·sul·phur

[ dee-suhl-fer ]
/ diˈsʌl fər /

verb (used with object)

to free from sulfur; desulfurize.

Origin of desulfur

First recorded in 1870–75; de- + sulfur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019