The DICT Development Group
3 definitions found
From The Collaborative International Dictionary of English v.0.48 :
Ytterbium \Yt*ter"bi*um\, n. [NL., fr. Ytterby, in Sweden. See
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.
Note: Ytterbium is associated with other rare elements, and
probably has not been prepared in a pure state.
From WordNet (r) 3.0 (2006) :
n 1: a soft silvery metallic element; a rare earth of the
lanthanide series; it occurs in gadolinite and monazite and
xenotime [syn: ytterbium, Yb, atomic number 70]
From The Elements (07Nov00) :
Atomic number: 70
Atomic weight: 173.04
Silvery metallic element of the lanthanoids. Seven natural isotopes and
ten artificial isotopes are known. Used in certain steels. Discovered
J.D.G. Marignac in 1878.
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