Medical Dictionary
deuterium
noun deu·te·ri·um \d(y)ü-ˈtir-ē-əm\
Medical Definition of DEUTERIUM
: an isotope of hydrogen that has one proton and one neutron in its nucleus and that has twice the mass of ordinary hydrogen—called also heavy hydrogen
Seen & Heard
What made you want to look up deuterium? Please tell us where you read or heard it (including the quote, if possible).