Heavy hydrogen, the oxide of which is heavy water used to slow down neutrons emitted in nuclear fission.
An isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen); SYN. heavy hydrogen.
Naturally occurring heavy isotope of hydrogen, mass number 2 (one proton and one neutron), discovered by Harold Urey 1932. It is sometimes given the symbol D. In nature, about one in every 6,500 hydrogen atoms is deuterium. Combined with oxygen, it produces “heavy water” (D2O), used in the nuclear industry.
Izotop hemijskog elementa vodonika; njegovo jedinjenje s kiseonikom daje "tešku vodu" koja ima značajnu primenu u atomskoj fizici.
Izotop vodonika, dva atoma vodonika, D, teška voda. Teški vodonik, znak D.