Icelandic

Noun

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

þrívetni n ‎(genitive singular þrívetnis, no plural)

1. (physics, symbol T or ³₁H) tritium ^syn.

Coordinate terms

• (isotopes of hydrogen)

  protium: einvetni (also called prótín)

  deuterium: tvívetni (also called þungt vetni or þungavetni)

Declension

Hypernyms

• vetni (“hydrogen”)

Synonyms

• (tritium): ^def. ofurþungt vetni