S1U1L1F4I1D2
10 points
SULFID is validvalid
sulfide [n SULFIDS]
a compound of an element or radical with sulphur, also SULFIDE, SULPHID, SULPHIDE [n -S]
sulfide [n SULFIDS]
a compound of an element or radical with sulphur, also SULFIDE, SULPHID, SULPHIDE [n -S]