Icelandic

Noun

A picture of einvetni ‎(“protium”), tvívetni ‎(“deuterium”) and þrívetni ‎(“triterium”).

einvetni n ‎(genitive singular einvetnis, no plural)

1. (physics, symbol ¹₁H) protium ^syn.

Coordinate terms

• (isotopes of hydrogen)

  deuterium: tvívetni (also called þungt vetni or þungavetni)

  tritium: þrívetni (also called ofurþungt vetni)

Declension

Derived terms

• einvetnisfrumeind

Hypernyms

• vetni (“hydrogen”)

Synonyms

• (protium): ^def. prótín