Does putting something in boiling water disinfect it

You would be correct, boiling water does disinfect contamination.

The property of disinfecting means to kill germs, bacteria and other pathogens or contamination that might cause an infection or cause a person to become sickly. A couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.

The reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.