from The American Heritage® Dictionary of the English Language, 4th Edition
- The symbol for the element hafnium.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Symbol for hafnium.
from The Century Dictionary and Cyclopedia
- n. A contraction of half.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
- n. 3 to 30 megahertz
Sorry, no etymologies found.