Lithuanian ⇄ Arabic Basque Bulgarian Catalan Chinese Croatian Czech Danish Dutch English Estonian Finnish French German Greek Hungarian Irish Italian Latvian Maltese Norwegian Bokmål Polish Portuguese Romanian Russian Slovak Slovene Spanish Swedish Turkish Ukrainian

natūralus radioaktyvumas
environ.	prirodna radioaktivnost Zračenje koje potječe uglavnom iz urana, prisutnog u malim količinama u mnogim stijenama, tlima, građevinskom materijalu itd