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Definition of Ruthenium in English :

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Ruthenium

see synonyms of ruthenium

Noun

1. atomic number 44, ru, ruthenium

a rare polyvalent metallic element of the platinum group; it is found associated with platinum

WordNet Lexical Database for English. Princeton University. 2010.

Ruthenium

see synonyms of ruthenium
noun
a hard brittle white element of the platinum metal group. It occurs free with other platinum metals in pentlandite and other ores and is used to harden platinum and palladium. Symbol: Ru; atomic no: 44; atomic wt: 101.07; valency: 0–8; relative density: 12.41; melting pt: 2334°C; boiling pt: 4150°C

Collins English Dictionary. Copyright © HarperCollins Publishers

Ruthenium

see synonyms of ruthenium
noun
a rare, very hard and brittle, silver-gray chemical element, one of the platinum metals, used as a hardener in alloys of platinum and palladium and as a catalyst: symbol, Ru; at. no., 44
see the periodic table of elements in the Reference Supplement

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Ruthenium

see synonyms of ruthenium
n. Symbol Ru
A hard silver-white acid-resistant metallic element that is found in platinum ores and is used to harden platinum and palladium for jewelry and in alloys for nonmagnetic wear-resistant instrument pivots and electrical contacts. Atomic number 44; atomic weight 101.07; melting point 2,334°C; boiling point 4,150°C; specific gravity 12.1 (20°C); valence 0, 1, 2, 3, 4, 5, 6, 7, 8. See Periodic Table.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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