The Collaborative International Dictionary
Desulphurize
Desulphurize \De*sul"phur*ize\, v. t. To desulphurate; to deprive of sulphur. -- De*sul`phur*i*za"tion, n.
Wiktionary
desulphurize
vb. 1 (label en Oxford) (alternative spelling of desulfurize English) (qualifier: American spelling) 2 (alternative spelling of desulphurise English) (qualifier: British spelling)