S1U1L1F4I1D2E1S1
12 points
SULFIDES is validvalid
SULFIDE, a sulfur compound [n]
SULFIDE, a compound of an element or radical with sulphur, also SULFID, SULPHID, SULPHIDE [n]
SULFIDE, a sulfur compound [n]
SULFIDE, a compound of an element or radical with sulphur, also SULFID, SULPHID, SULPHIDE [n]