from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A gray, green to yellow, or brown vitreous mineral, BeAl2O4, relatively rare and used as a gemstone.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A vitreous mineral, often pale green, a mixed oxide of aluminium and beryllium with the chemical formula BeAl2O4, used as a gemstone.
from the GNU version of the Collaborative International Dictionary of English
- n. A mineral, found in crystals, of a yellow to green or brown color, and consisting of aluminia and glucina. It is very hard, and is often used as a gem.
from The Century Dictionary and Cyclopedia
- n. A mineral of a yellowish-green to emerald-green color, sometimes red by transmitted light, an aluminate of glucinum.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
Latin chrȳsobēryllus, from Greek khrūsobērullos : khrūso-, chryso- + bērullos, beryl; see beryl.(American Heritage® Dictionary of the English Language, Fourth Edition)