from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a group of metallic elements, especially calcium, strontium, magnesium, and barium, but generally including beryllium and radium. Also called alkaline earth.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of alkaline earth metal.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
Sorry, no etymologies found.