also: ゆおう
noun
sulfur; sulphur
The chemical element sulfur (S). Used in scientific, industrial, and everyday contexts.
硫黄は温泉の独特な匂いの原因です。
Sulfur is the cause of the distinctive smell of hot springs.
この火山地帯では硫黄が採掘されています。
Sulfur is mined in this volcanic region.
Rare reading; いおう is the modern standard.
From Chinese 硫黄 (liúhuáng). The reading いおう is a Japanese adaptation of the Chinese pronunciation; ゆおう is an older variant.