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Ru

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Symbol, Chemistry.
  1. ruthenium.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for ru

glare, gape, pin, ogle, bore, admire, eye, moon, rubber, peek, inspect, regard, gawk, contemplate, observe, gloat, peer, peep, look, beam

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British Dictionary definitions for ru

ru

the internet domain name for
  1. Russian Federation
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Ru

the chemical symbol for
  1. ruthenium
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RU

abbreviation for
  1. Rugby Union
  2. Burundi (international car registration)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

ru in Medicine

Ru

  1. The symbol for the elementruthenium
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ru in Science

Ru

  1. The symbol for ruthenium.
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ruthenium

[rōō-thēnē-əm]
Ru
  1. A rare, silvery-gray metallic element that is hard, brittle, and very resistant to corrosion. It is used to harden alloys of platinum and palladium for jewelry and electrical contacts. Atomic number 44; atomic weight 101.07; melting point 2,310°C; boiling point 3,900°C; specific gravity 12.41; valence 0, 1, 2, 3, 4, 5, 6, 7, 8. See Periodic Table.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.