LUTETIUM

lutetium, lutecium, Lu, atomic number

(noun) a trivalent metallic element of the rare earth group; usually occurs in association with yttrium

Source: WordNet® 3.1


Etymology

Noun

lutetium (uncountable)

A chemical element (symbol Lu) with an atomic number of 71, a silvery-white metal which resists corrosion in dry air.

Synonyms

• cassiopeium (name proposed by Baron Carl Auer von Welsbach, one of the discoverers of lutetium, but rejected)

Source: Wiktionary



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Word of the Day

6 November 2024

SEARCHINGLY

(adverb) in a searching manner; “‘Are you really happy with him,’ asked her mother, gazing at Vera searchingly”


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Coffee Trivia

In the 18th century, the Swedish government made coffee and its paraphernalia (including cups and dishes) illegal for its supposed ties to rebellious sentiment.

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