DESULPHURISE is validvalid

to desulfurize [v DESULPHURISED, DESULPHURISES, DESULPHURISING]

166,958 of 196,601 in NWL2023·also valid in CSW24

to remove the sulphur from a compound, also DESULFURISE, DESULFURIZE, DESULPHURIZE [v DESULPHURISED, DESULPHURISING, DESULPHURISES]