What is another word for deuterium?
Pronunciation: [djuːtˈi͡əɹɪəm] (IPA) 
Deuterium is an isotope of hydrogen with a nucleus that contains a neutron in addition to a proton. This heavy water fraction is also known as "heavy hydrogen" or "D." The term "heavy water" is also used as a synonym for deuterium oxide, which is a chemical compound containing deuterium and oxygen. Other possible synonyms include "isotopic hydrogen", "D2", and "hydrogen-2." Deuterium is commonly used in nuclear reactors and as a tracer in chemical reactions and scientific studies. Its abundance in water and organic molecules make it an important molecule for understanding chemical and biological processes.
