WordNet (r) 3.0 (2006):
sulfur n 1: 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) [syn: sulfur, S, sulphur, atomic number 16] v 1: treat with sulphur in order to preserve; "These dried fruits are sulphured" [syn: sulphur, sulfur]