einvetni

From ein- (“mono-, uni-, mono”) +‎ vetni (“hydrogen”).

• IPA^(key): /ˈein.vɛhtnɪ/

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

einvetni n (genitive singular einvetnis, no plural)

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

• (protium): ^def. prótín

• vetni (“hydrogen”)

• (isotopes of hydrogen)

  deuterium: tvívetni (also called þungt vetni or þungavetni)

  tritium: þrívetni (also called ofurþungt vetni)

• einvetnisfrumeind