Europium

ahd-5
  • noun. A silvery-white, soft, ductile, rare-earth element occurring in monazite and bastnaesite and used to dope glass and plastics for lasers and to absorb neutrons in research. Europium oxides provide important phosphors in cathode-ray tubes and low-energy lighting applications. Atomic number 63; atomic weight 151.96; melting point 822°C; boiling point 1,596°C; specific gravity 5.244; valence 2, 3. cross-reference: Periodic Table.
    • The Century Dictionary and Cyclopedia
  • noun. A supposed new element announced by Demarçay in 1901, obtained in very small quantity as oxid, sulphate, etc., from samar-skite and monazite.
    • the GNU version of the Collaborative International Dictionary of English
  • noun. A metallic element of the rare-earth group (Lanthanide series), discovered spectroscopically by Demarcay in 1896. Symbol, Eu; atomic number 63; at. wt., 151.965 (C=12.011); valence = +2 or +3.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. a metallic chemical element (symbol Eu) with an atomic number of 63.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. a bivalent and trivalent metallic element of the rare earth group
    • Word Usage
    "Now rare earth elements with exotic names such as europium and tantalum hold the key to hybrid cars, wind turbines and crystal-clear"
    Hypernym
    Words that are more generic or abstract
    metal  metallic element  
    Rhyme
    Words with the same terminal sound
    opium  
    Same Context
    Words that are found in similar contexts
    associat  bromonium  cerium  diazonium  f-electron  
    Disclaimer: This site has been created by RJ Softwares and is part of the Lexulous & Wordscraper games.