| slovo | definícia |
Zirco-
(gcide) | Zirco- \Zir"co-\ (Chem.)
A combining form (also used adjectively) designating
zirconium as an element of certain double compounds;
zircono-; as in zircofluoric acid, sodium zircofluoride.
[1913 Webster] |
| | podobné slovo | definícia |
cubic zirconia
(gcide) | Zirconia \Zir*co"ni*a\, n. [NL.] (Chem.)
The oxide of zirconium (ZrO2), obtained as a white powder,
and possessing both acid and basic properties. On account of
its infusibility, and brilliant luminosity when incandescent,
it is used as an ingredient of sticks for the Drummomd light.
[1913 Webster]
cubic zirconia. A colorless form of zirconia similar in
appearance and refractivity to diamond, and used as a
substitute for diamonds in inexpensive jewelry; -- also
known by the acronym CZ.
[PJC] |
Zircofluoride
(gcide) | Zircofluoride \Zir`co*flu"or*ide\, n. (Chem.)
A double fluoride of zirconium and hydrogen, or some other
positive element or radical; as, zircofluoride of sodium.
[1913 Webster] |
Zircon
(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] |
Zircon light
(gcide) | Zircon light \Zir"con light\ (Physics)
A light, similar to the calcium light, produced by
incandescent zirconia.
[Webster 1913 Suppl.] |
Zircon syenite
(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] |
Zircona
(gcide) | Zircona \Zir"co*na\, n. [NL.] (Chem.)
Zirconia.
[1913 Webster] |
Zirconate
(gcide) | Zirconate \Zir"con*ate\, n. (Chem.)
A salt of zirconic acid.
[1913 Webster] |
Zirconia
(gcide) | Zirconia \Zir*co"ni*a\, n. [NL.] (Chem.)
The oxide of zirconium (ZrO2), obtained as a white powder,
and possessing both acid and basic properties. On account of
its infusibility, and brilliant luminosity when incandescent,
it is used as an ingredient of sticks for the Drummomd light.
[1913 Webster]
cubic zirconia. A colorless form of zirconia similar in
appearance and refractivity to diamond, and used as a
substitute for diamonds in inexpensive jewelry; -- also
known by the acronym CZ.
[PJC] |
Zirconic
(gcide) | Zirconic \Zir*con"ic\, a. (Chem.)
Pertaining to, containing, or resembling, zirconium; as,
zirconic oxide; zirconic compounds.
[1913 Webster]
Zirconic acid, an acid of zirconium analogous to carbonic
and silicic acids, known only in its salts.
[1913 Webster] |
Zirconic acid
(gcide) | Zirconic \Zir*con"ic\, a. (Chem.)
Pertaining to, containing, or resembling, zirconium; as,
zirconic oxide; zirconic compounds.
[1913 Webster]
Zirconic acid, an acid of zirconium analogous to carbonic
and silicic acids, known only in its salts.
[1913 Webster] |
Zirconium
(gcide) | Zirconium \Zir*co"ni*um\, n. [NL.] (Chem.)
A rare element of the carbon-silicon group, intermediate
between the metals and nonmetals, obtained from the mineral
zircon as a dark sooty powder, or as a gray metallic
crystalline substance. Symbol Zr. Atomic weight, 90.4.
[1913 Webster] |
Zircono
(gcide) | Zircono \Zir"co*no\
See Zirco-.
[1913 Webster] |
Zirconoid
(gcide) | Zirconoid \Zir"con*oid\, n. [Zircon + oid.] (Crystallog.)
A double eight-sided pyramid, a form common with tetragonal
crystals; -- so called because this form often occurs in
crystals of zircon.
[1913 Webster] |
zirconium
(elements) | zirconium
Symbol: Zr
Atomic number: 40
Atomic weight: 91.22
Grey-white metallic transition element. Five natural isotopes and six
radioactive isotopes are known. Used in nuclear reactors for a neutron
absorber. Discovered in 1789 by Martin Klaproth, isolated in 1824 by
Berzelius.
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