[ ih-tur-bee-uhm ]
/ ɪˈtɜr bi əm /
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.
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Compare rare-earth element.
OTHER WORDS FROM ytterbiumyt·ter·bic, yt·ter·bous, adjective
Words nearby ytterbium
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for ytterbium
Ytterbium, i-ter′bi-um, n. an element discovered by Marignac in gadolinite.
British Dictionary definitions for ytterbium
/ (ɪˈtɜːbɪəm) /
a 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 ytterbium
C19: 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 ytterbium
[ ĭ-tûr′bē-əm ]
n. Symbol Yb
A 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 ytterbium
[ ĭ-tûr′bē-əm ]
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.