B3I1S1U1L1F4I1D2E1
15 points
BISULFIDE is validvalid
hydrogen sulfide [n BISULFIDES]
a sulphide having two atoms of sulphur in the molecule, also BISULPHIDE [n -S]
hydrogen sulfide [n BISULFIDES]
a sulphide having two atoms of sulphur in the molecule, also BISULPHIDE [n -S]