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· Ancient Greek
δεύτερος
4 English words descend from Ancient Greek
δεύτερος
, most common first.
deuterium
An isotope of hydrogen with one proton and one neutron in each atom - 21H.
deuteron
the nucleus of deuterium, consisting of a proton and a neutron
deuteride
Any hydride in which normal hydrogen is replaced by deuterium.
deutero-
Second or secondary.