[さんかジルコニウム, sanka jirukoniumu] (n) zirconium oxide; zirconia [Add to Longdo]
Result from Foreign Dictionaries (2 entries found)
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Zircon \Zir"con\, n. [F., the same word as jargon. See {Jargon}
a variety of zircon.]
1. (Min.) 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}.
[1913 Webster +PJC]
2. an imitation gemstone made of {cubic zirconia}.
[PJC]
{Zircon syenite}, a coarse-grained syenite containing zircon
crystals and often also elaeolite. It is largely developed
in Southern Norway.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
zircon
n 1: a common mineral occurring in small crystals; chief source
of zirconium; used as a refractory when opaque and as a gem
when transparent [syn: {zircon}, {zirconium silicate}]
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