| slovo | definícia |
uranin
(czen) | uranin,uraninite Zdeněk Brož |
uranin
(gcide) | fluorescein \fluo`res"ce*in\, fluoresceine \fluo`res"ce*ine\,
fluorescein \flu`o*res"ce*["i]n\, n. (Chem.)
A yellowish red, crystalline substance, C20H12O5, produced
by heating together phthalic anhydride and resorcin; -- so
called, from the very brilliant yellowish green fluorescence
of its alkaline solutions. It has acid properties, and its
salts of the alkalies are known to the trade under the name
of uranin.
Syn: fluorescein, fluorescent dye, resorcinolphthalein.
[1913 Webster] |
Uranin
(gcide) | Uranin \U"ra*nin\, n. (Chem.)
An alkaline salt of fluorescein, obtained as a brownish red
substance, which is used as a dye; -- so called from the
peculiar yellowish green fluorescence (resembling that of
uranium glass) of its solutions. See Fluorescein.
[1913 Webster] |
| | podobné slovo | definícia |
uraninite
(encz) | uraninite,smolinec n: [chem.] [geol.] uraninit, oxid uraničitý Petr
Prášekuraninite,uranin Zdeněk Brož |
uranin
(czen) | uranin,uraninite Zdeněk Brož |
uranin
(gcide) | fluorescein \fluo`res"ce*in\, fluoresceine \fluo`res"ce*ine\,
fluorescein \flu`o*res"ce*["i]n\, n. (Chem.)
A yellowish red, crystalline substance, C20H12O5, produced
by heating together phthalic anhydride and resorcin; -- so
called, from the very brilliant yellowish green fluorescence
of its alkaline solutions. It has acid properties, and its
salts of the alkalies are known to the trade under the name
of uranin.
Syn: fluorescein, fluorescent dye, resorcinolphthalein.
[1913 Webster]Uranin \U"ra*nin\, n. (Chem.)
An alkaline salt of fluorescein, obtained as a brownish red
substance, which is used as a dye; -- so called from the
peculiar yellowish green fluorescence (resembling that of
uranium glass) of its solutions. See Fluorescein.
[1913 Webster] |
Uraninite
(gcide) | Uraninite \U*ran"i*nite\, n. (Min.)
A mineral consisting chiefly of uranium oxide with some lead,
thorium, etc., occurring in black octahedrons, also in masses
with a pitchlike luster; pitchblende.
[1913 Webster] |
uraninite
(wn) | uraninite
n 1: a mineral consisting of uranium oxide and trace amounts of
radium and thorium and polonium and lead and helium;
uraninite in massive form is called pitchblende which is
the chief uranium ore [syn: uraninite, pitchblende] |
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