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BNC: 0 COCA: 45315

lanthanum

noun
/ˈlænθənəm/
/ˈlænθənəm/
[uncountable]
(symbol La)
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  1. a chemical element. Lanthanum is a silver-white metal.
    Word Originmid 19th cent.: from Greek lanthanein ‘escape notice’ (because for a long time it was undetected in cerium oxide) + -um.
BNC: 0 COCA: 45315
BNC: 0 COCA: 45315
BNC: 0 COCA: 45315
lanthanum
Chemical elements:actinium, alkali metal, americium...

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