terbium Hear it!

terbium definition

ter·bium (tʉr′bē əm)

noun

a soft, silver-gray, ductile chemical element, one of the rare-earth elements, found in gadolinite and other minerals: symbol, Tb; at. no., 65

Etymology: ModL: so named (1843) by Mosander, its discoverer, after Ytterby: see erbium

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.