Definitionen
1.NounAlternative spelling of sulfur.
2.VerbAlternative spelling of sulfur.
3.Verb↑ “So long sulphur”, in Nature Chemistry, volume 1, number 5, August 2009, →DOI, →ISSN, page 333: “It is not a question of American or Oxford English spelling, it is a given name — and 'correcting' such a name to a different spelling is wholly inappropriate.”