eosin – מילון אנגלי-אנגלי
eosin
n.
substance used as a red dye (Chemistry)
Eosin
Eosin is a
fluorescent acidic / negative compound that binds to and forms salts with basic, or eosinophilic, compounds containing positive charges (such as proteins that are basic / positive due to the presence of amino acid residues such as
arginine and
lysine) and stains them dark red or pink as a result of the actions of
bromine on
fluorescein. In addition to staining proteins in the
cytoplasm, it can be used to stain
collagen and muscle fibers for examination under the
microscope. Structures that stain readily with eosin are termed
eosinophilic.
eosin
Noun
1. a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures
(synonym) bromeosin
(hypernym) fluorescein, fluoresceine, fluorescent dye, resorcinolphthalein
Eosin (das)
n.
eosin, substance used as a red dye (Chemistry)
Eosin
(n.)
A yellow or brownish red dyestuff obtained by the action of bromine on fluorescein, and named from the fine rose-red which it imparts to silk. It is also used for making a fine red ink. Its solution is fluorescent.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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