lanthanum

(uncountable) A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
(countable) An atom of this element.

atomic number 57

λανθάνιο

لنثانوم

lantánio

λανθανιο

From Ancient Greek λανθάνω (lanthánō, “to escape notice”) + -um (“a chemical element”), because it had gone long undetected in mineral ores.

Improve your pronunciation

Practice speaking and memorizing "lanthanum" and many other words and sentences in English.

Show popularity over time