| slovo | definícia |
barium
(encz) | barium,baryum n: Zdeněk Brož |
Barium
(gcide) | Barium \Ba"ri*um\, n. [NL., fr. Gr. bary`s heavy.] (Chem.)
One of the elements, belonging to the alkaline earth group; a
metal having a silver-white color, and melting at a very high
temperature. It is difficult to obtain the pure metal, from
the facility with which it becomes oxidized in the air.
Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
[Rarely written barytum.]
[1913 Webster]
Note: Some of the compounds of this element are remarkable
for their high specific gravity, as the sulphate,
called heavy spar, and the like. The oxide was called
barote, by Guyton de Morveau, which name was changed by
Lavoisier to baryta, whence the name of the metal.
[1913 Webster] |
barium
(wn) | barium
n 1: a soft silvery metallic element of the alkali earth group;
found in barite [syn: barium, Ba, atomic number 56] |
barium
(elements) | barium
Symbol: Ba
Atomic number: 56
Atomic weight: 137.34
Silvery-white reactive element, belonging to group 2 of the periodic
table. Soluble barium compounds are extremely poisonous. Identified in
1774 by Karl Scheele and extracted in 1808 by Humphry Davy.
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| | podobné slovo | definícia |
columbarium
(encz) | columbarium,kolumbárium Zdeněk Brož |
Barium
(gcide) | Barium \Ba"ri*um\, n. [NL., fr. Gr. bary`s heavy.] (Chem.)
One of the elements, belonging to the alkaline earth group; a
metal having a silver-white color, and melting at a very high
temperature. It is difficult to obtain the pure metal, from
the facility with which it becomes oxidized in the air.
Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
[Rarely written barytum.]
[1913 Webster]
Note: Some of the compounds of this element are remarkable
for their high specific gravity, as the sulphate,
called heavy spar, and the like. The oxide was called
barote, by Guyton de Morveau, which name was changed by
Lavoisier to baryta, whence the name of the metal.
[1913 Webster] |
Columbarium
(gcide) | Columbarium \Col`um*ba"ri*um\, n.; pl. L. Columbaria [L. See
Columbary.] (Rom. Antiq.)
(a) A dovecote or pigeon house.
(b) A sepulchral chamber with niches for holding cinerary
urns.
[1913 Webster] |
Herbarium
(gcide) | Herbarium \Her*ba"ri*um\, n.; pl. E. Herbariums, L.
Herbaria. [LL., fr. L. herba. See Herb, and cf. Arbor,
Herbary.]
1. A collection of dried specimens of plants, systematically
arranged. --Gray.
[1913 Webster]
2. A book or case for preserving dried plants.
[1913 Webster] |
Herbariums
(gcide) | Herbarium \Her*ba"ri*um\, n.; pl. E. Herbariums, L.
Herbaria. [LL., fr. L. herba. See Herb, and cf. Arbor,
Herbary.]
1. A collection of dried specimens of plants, systematically
arranged. --Gray.
[1913 Webster]
2. A book or case for preserving dried plants.
[1913 Webster] |
Syllabarium
(gcide) | Syllabarium \Syl`la*ba"ri*um\, n.; pl. Syllabaria. [NL.]
A syllabary.
[1913 Webster] |
Verbarium
(gcide) | Verbarium \Ver*ba"ri*um\, n. [NL., fr. L. verbum word.]
A game in word making. See Logomachy, 2.
[1913 Webster] |
barium dioxide
(wn) | barium dioxide
n 1: a white toxic powder obtained by heating barium oxide in
air [syn: barium dioxide, barium peroxide] |
barium enema
(wn) | barium enema
n 1: enema in which a contrast medium (usually barium sulfate)
is injected into the rectum and X-rays are taken to search
for lesions |
barium hydroxide
(wn) | barium hydroxide
n 1: white poisonous crystals; made by dissolving barium oxide
in water |
barium monoxide
(wn) | barium monoxide
n 1: an oxide of barium; a whitish toxic powder [syn: {barium
monoxide}, barium oxide, barium protoxide] |
barium oxide
(wn) | barium oxide
n 1: an oxide of barium; a whitish toxic powder [syn: {barium
monoxide}, barium oxide, barium protoxide] |
barium peroxide
(wn) | barium peroxide
n 1: a white toxic powder obtained by heating barium oxide in
air [syn: barium dioxide, barium peroxide] |
barium protoxide
(wn) | barium protoxide
n 1: an oxide of barium; a whitish toxic powder [syn: {barium
monoxide}, barium oxide, barium protoxide] |
barium sulfate
(wn) | barium sulfate
n 1: a white insoluble radiopaque powder used as a pigment [syn:
barium sulphate, barium sulfate, blanc fixe] |
barium sulphate
(wn) | barium sulphate
n 1: a white insoluble radiopaque powder used as a pigment [syn:
barium sulphate, barium sulfate, blanc fixe]
2: a white or colorless mineral (BaSO4); the main source of
barium [syn: heavy spar, barite, barytes, {barium
sulphate}] |
columbarium
(wn) | columbarium
n 1: a birdhouse for pigeons [syn: dovecote, columbarium,
columbary]
2: a niche for a funeral urn containing the ashes of the
cremated dead [syn: columbarium, cinerarium]
3: a sepulchral vault or other structure having recesses in the
walls to receive cinerary urns |
herbarium
(wn) | herbarium
n 1: a collection of dried plants that are mounted and
systematically classified for study |
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