单词 | ytterbium |
释义 | ytterbium[ ih-tur-bee-uhm ] / ɪˈtɜr bi əm / noun Chemistry.a rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb; atomic weight: 173.04; atomic number: 70; specific gravity: 6.96. Compare rare-earth element. Origin of ytterbiumFrom New Latin, dating back to 1875–80; see origin at ytterbia, -ium OTHER WORDS FROM ytterbiumyt·ter·bic, yt·ter·bous, adjectiveWords nearby ytterbiumYT, YTD, YTS, ytterbia, ytterbite, ytterbium, ytterbium oxide, yttria, yttriferous, yttrium, yttrium metal Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for ytterbium
British Dictionary definitions for ytterbiumytterbium / (ɪˈtɜːbɪəm) / nouna soft malleable silvery element of the lanthanide series of metals that occurs in monazite and is used to improve the mechanical properties of steel. Symbol: Yb; atomic no: 70; atomic wt: 173.04; valency: 2 or 3; relative density: 6.903 (alpha), 6.966 (beta); melting pt: 819°C; boiling pt: 1196°C Word Origin for ytterbiumC19: New Latin; see ytterbia 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 Medical definitions for ytterbiumytterbium [ ĭ-tûr′bē-əm ] n. Symbol YbA soft bright allotropic rare-earth element, whose radioisotope is used in diagnostic imaging of the brain. Atomic number 70. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for ytterbiumytterbium [ ĭ-tûr′bē-əm ] Yb A soft, silvery-white metallic element of the lanthanide series that occurs as seven stable isotopes. It is used as a radiation source for portable x-ray machines. Atomic number 70; atomic weight 173.04; melting point 824°C; boiling point 1,196°C; specific gravity 6.972 or 6.54 (25°C) depending on allotropic form; valence 2, 3. See Periodic Table. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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