Protium

Origin

from Ancient Greek πρῶτος (prōtos, "first") + -ium

Full definition of protium

Noun

1. (isotope) The lightest and most common isotope of hydrogen, having a single proton and no neutrons -So far there are no differences among the protiums extracted at various labs, except for concentration levels.
2. An atom of this isotope.

Synonyms

• hydrogen-one, hydrogen-1, H-1
• unium-one, unium-1, U-1

Hypernyms

• element one, element 1
• hydrogen (H)
• unium (U)

Coordinate terms

• (isotopes of hydrogen) deuterium, tritium, quadrium

Related terms

• proton (p)