sulfur, S, sulphur, atomic number 16 -- (an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions))
Overview of verb sulphur
The verb sulphur has 1 sense
sulphur, sulfur -- (treat with sulphur in order to preserve; "These dried fruits are sulphured")