1. A highly toxic chemical used to engrave metal plates and electronic circuits

Type of: perchloride

• golden wattle
• soteriology
• Sothis
• Sotho
• sottish
• sottishly
• sottishness
• sotto voce
• sou
• sou'-east
• sou'-sou'-east
• sou'-sou'-west
• sou'-west
• sou'easter
• sou'wester
• souari
• souari nut
• souari tree
• Soubise
• soubrette
• soubriquet
• souchong
• Soudan
• souffle
• Soufflot