deuterium
deu·te·ri·um
noun \dü-ˈtir-ē-əm also dyü-\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 —symbol D —called also heavy hydrogen
See Origin of DEUTERIUM
New Latin, from Greek deuteros second
First Known Use: 1933
Learn More About DEUTERIUM
Browse
Next Word in the Dictionary: deuterium oxide
Previous Word in the Dictionary: deuteride
All Words Near: deuterium
Previous Word in the Dictionary: deuteride
All Words Near: deuterium
Seen & Heard 
What made you want to look up deuterium? Please tell us where you read or heard it (including the quote, if possible).
