þrívetni

From þrí- (“tri-, three”) +‎ vetni (“hydrogen”).

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

þrívetni n (genitive singular þrívetnis, no plural)

1. (physics, symbol T or ³₁H) tritium

• (tritium): ofurþungt vetni

• vetni (“hydrogen”)

• (isotopes of hydrogen)

  protium: einvetni (also called prótín)

  deuterium: tvívetni (also called þungt vetni or þungavetni)