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
From the M-W Editors
Origin and Etymology of deuterium
New Latin, from Greek deuteros second
First Known Use: 1933
Medical Dictionary
deuterium
playMedical 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
Learn More about deuterium
-
See words that rhyme with deuterium Britannica.com: Encyclopedia article about deuterium
Seen and Heard
What made you want to look up deuterium? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!