S1U1L1F4I1D2S1
11 points
SULFIDS is validvalid
SULFID, sulfide [n]
SULFID, a compound of an element or radical with sulphur, also SULFIDE, SULPHID, SULPHIDE [n]
SULFID, sulfide [n]
SULFID, a compound of an element or radical with sulphur, also SULFIDE, SULPHID, SULPHIDE [n]