(n.) 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.
These files are public domain.
Text Courtesy of BibleSupport.com. Used by Permission.
Webster, Noah. Entry for 'Ytterbium'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/y/ytterbium.html. 1828.