1-Stop Dictionary Reference

Lutetium

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The American Heritage® Dictionary of the English Language, 4th Edition

n. A silvery-white rare-earth element that is exceptionally difficult to separate from the other rare-earth elements, used in nuclear technology. Atomic number 71; atomic weight 174.97; melting point 1,663°C; boiling point 3,395°C; specific gravity 9.840 (at 25°C); valence 3. See Table at element.

Wiktionary, Creative Commons Attribution/Share-Alike License

n. A metallic chemical element (symbol Lu) with an atomic number of 71.

the GNU version of the Collaborative International Dictionary of English

n. A metallic element separated from ytterbium in 1907, by Urbain in Paris and by von Welsbach in Vienna. It is a member of the Lanthanide rare earth group. Symbol, Lu; atomic number 71; atomic weight 174.967 [C=12.011]. Previously spelled Lutecium.

WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

n. a trivalent metallic element of the rare earth group; usually occurs in association with yttrium

Word Usage

"China accounts for 95 percent of global production and about 60 percent of consumption of rare metals, including dysprosium, terbium, thulium, lutetium and yttrium, according to the U.S."

Hypernym

Words that are more generic or abstract

metallic element metal

Form

lutetium oxide

Same Context

Words that are found in similar contexts

scandium gadolinium neodymium niobium cerium strontium