noun
lanthanum
Lanthanum (noun) means a chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
noun
1
A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
2
An atom of this element.
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Etymology
From Ancient Greek λανθάνω (lanthánō, “to escape notice”) + -um (“a chemical element”), because it had gone long undetected in mineral ores.
Rhymes for lanthanum
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What is the meaning of lanthanum?
"lanthanum" (noun) means a chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air.
What are the different meanings of lanthanum?
"lanthanum" has 2 main meanings: 1. A chemical element (symbol La) with an atomic number of 57: a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air; 2. An atom of this element.