|
Definition of Helium-3
1. Noun. (isotope) The rare isotope of helium, (nuclide 3 2 He), that has a single neutron ¹
¹ Source: wiktionary.com
Medical Definition of Helium-3
1. The rare stable isotope of helium (1.37 parts per million of ordinary helium); produced by the beta decay of tritium. (05 Mar 2000)