lanthanium
English edit
Etymology edit
From Ancient Greek λανθάνω (lanthánō, “to escape notice”), because it had gone long undetected in mineral ores; + -ium (“a chemical element”).
Noun edit
lanthanium (countable and uncountable, plural lanthaniums)
Dutch edit
Pronunciation edit
Audio (file) - Hyphenation: lan‧tha‧ni‧um
Noun edit
lanthanium n (uncountable)