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)
"Geologists often collect chunks of native sulphur from the ground near active volcanoes where it forms bright yellow deposits."
Alternative spelling of sulfur
"Please note that while most modern dictionaries list sulfur, older British texts often use sulphur as an alternative spelling for the same element."
A city, the county seat of Murray County, Oklahoma, United States.
"After visiting several towns in Oklahoma, we finally arrived at sulphur, the small county seat where our family stayed for the weekend."