noun
hydrogen sulfide; hydrogen sulphide
Chemical compound with the formula H₂S, known for its rotten-egg smell. The spelling 'sulphuretted hydrogen' is archaic.
硫化水素は腐った卵のようなにおいがする。
Hydrogen sulfide smells like rotten eggs.
温泉地では硫化水素の
In hot spring areas, the smell of hydrogen sulfide sometimes hangs in the air.