S - definition of S by The Free Dictionary
https://www.thefreedictionary.com/S
atomic number 16, sulfur, sulphur. chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter. brimstone, native sulfur, native sulphur - an old name for sulfur.
DA: 17 PA: 75 MOZ Rank: 57