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ytterbium - 8 dictionary results
yt⋅ter⋅bi⋅um
[i-tur-bee-uh
m] 
–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. |
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To ytterbium
| yt·ter·bi·um (ĭ-tûr'bē-əm) n. Symbol Yb A soft, bright, silvery rare-earth element occurring in two allotropic forms and used as an x-ray source for portable irradiation devices, in some laser materials, and in some special alloys. 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 Table at element. [After Ytterby, a town in Sweden.] yt·ter'bic (-bĭk) adj. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Ytterbium
Yt*ter"bi*um\, n. [NL., fr. Ytterby, in Sweden. See Erbium.] (Chem.) A rare element of the boron group, sometimes associated with yttrium or other related elements, as in euxenite and gadolinite. Symbol Yb; provisional atomic weight 173.2. Cf. Yttrium. Note: Ytterbium is associated with other rare elements, and probably has not been prepared in a pure state.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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ytterbium
metallic rare-earth element, 1879, coined in Mod.L. by Swed. chemist Carl Gustaf Mosander (1797-1858) from Ytterby, name of a town in Sweden where it was discovered.
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: yt·ter·bi·um
Pronunciation: i-'t&r-bE-&m
Function: noun
: a bivalent or trivalent metallic element of the rare-earthgroup that resembles yttrium and occurs with it and related elements in several minerals —symbol Yb; —see
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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ytterbium yt·ter·bi·um (ĭ-tûr'bē-əm)
n.
Symbol Yb
A soft bright allotropic rare-earth element. Atomic number 70; atomic weight 173.04; melting point 824°C; boiling point 1,194°C; specific gravity 6.97 or 6.90 (25°C) depending on allotropic form; valence 2, 3.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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| ytterbium (ĭ-tûr'bē-əm) Pronunciation Key
Symbol 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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ytterbium
((Yb), chemical element, rare-earth metal of the lanthanoid series of the periodic table, a low-melting-point, divalent rare earth with little commercial use.
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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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