Fant 14 synonym til sjelden jordart

Ord Ant. ord Lengde Bruker Dato
cerium 1 6 2 2005-02-18
erbium 1 6 2 2005-02-18
Lantan 1 6 1 2004-02-18
neodym 1 6 1 2004-02-16
holmium 1 7 2 2005-02-18
terbium 1 7 2 2005-02-18
thulium 1 7 2 2005-02-18
europium 1 8 2 2005-02-18
lutetium 1 8 2 2005-02-18
samarium 1 8 1 2004-03-27
praseodym 1 9 2 2005-02-18
ytterbium 1 9 2 2005-02-18