deuterium

Also contains definitions of: deuteride, deuterio

A specific name for the atom 2H. The cation2H+ is a deuteron the species 2H is a deuteride anion and 2H is the deuterio group.
Source:
PAC, 1988, 60, 1115 (Names for hydrogen atoms, ions, and groups, and for reactions involving them (Recommendations 1988)) on page 1116