from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A brown to colorless mineral, ZrSiO4, which is heated, cut, and polished to form a brilliant blue-white gem.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mineral occurring in tetragonal crystals, usually of a brown or grey colour and consisting of silica and zirconia.
- n. A crystal of zircon, sometimes used as a false gemstone.
from the GNU version of the Collaborative International Dictionary of English
- n. A mineral consisting predominantly of zirconium silicate (Zr2SiO4) occurring in tetragonal crystals, usually of a brown or gray color. It consists of silica and zirconia. A red variety, used as a gem, is called hyacinth. Colorless, pale-yellow or smoky-brown varieties from Ceylon are called jargon.
- n. an imitation gemstone made of cubic zirconia.
from The Century Dictionary and Cyclopedia
- n. A mineral occurring in tetragonal crystals of adamantine luster and yellowish to brownish or reddish color: its hardness is somewhat greater than that of quartz.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent
German Zirkon, from Arabic siriqun, from Greek surikon, from Persian āzargūn, fire color : āzar, fire (from Middle Persian ādur, from Old Persian *ātar, āç-, in Āçiyādiya, fire-worship month) + -gūn, color (from Middle Persian; akin to Avestan gaonəm, hair, complexion (second sense unattested)).(American Heritage® Dictionary of the English Language, Fourth Edition)
From German Zirkon or French zircone, from Arabic زرقون (zarqūn, "cinnabar, bright red"), from Persian زرگون (zargun) / زریون (zaryun), from Middle Persian 𐭦𐭫𐭢𐭥𐭭 (zargōn). (Wiktionary)