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Related to eosin: Eosin Y


1. A yellowish-red crystalline powder, C20H8 Br4O5, used in textile dyeing and ink manufacturing, as a biological stain, and in coloring gasoline.
2. Any of a group of red fluorescent bromine derivatives of fluorescein, or their sodium or potassium salts, used in ink manufacturing, textile dyeing, and in biology to stain cells.

[Greek ēōs, dawn (from its color); see aus- in Indo-European roots + -in.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈiːəʊsɪn) or


1. (Elements & Compounds) Also called: bromeosin a red crystalline water-insoluble derivative of fluorescein. Its soluble salts are used as dyes. Formula: C20H8Br4O5
2. (Dyeing) any of several similar dyes
[C19: from Greek ēōs dawn + -in; referring to the colour it gives to silk]
ˌeoˈsinic adj
ˈeosin-ˌlike adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈi ə sɪn)

also e•o•sine

(-sɪn, -ˌsin)

1. a red, crystalline, water-insoluble solid, C20H8Br4O5, used chiefly as an acid dye for silk and as a histological stain.
2. any of a variety of similar dyes.
[1865–70; < Greek ēṓs dawn (see eo-) + -in1]
e`o•sin′ic, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.eosin - a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures
fluorescein, fluoresceine, fluorescent dye, resorcinolphthalein - a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. eosina, sustancia insoluble usada como colorante rojo en algunos tejidos que se estudian bajo el microscopio.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Rawat, from the University of Southern California in Los Angeles, and colleagues introduced a machine learning framework to identify relationships between cancer tissue morphology and hormone receptor pathway activation in breast cancer pathology samples stained with hematoxylin and eosin (H&E).
Two of the parrots died, and histologic examination with hematoxylin and eosin and Prussian blue stains revealed severe hepatic iron storage.
The staining methods performed for light microscopy were Hematoxylin and Eosin (HandE) in order to study the morphology and determine the frequency of five classes of Lupus Nephritis.
Biopsies for hematoxylin and eosin staining and direct immunofluorescence were performed.
For each [[theta].sub.t] tested, three hydrodynamic assays of stimulus-response were carried out in pulse type using eosin Y and bromophenol blue as tracers, with injection volume of 10 mL and injection time of 10 s.
The cells are uniformly round to oval with stippled chromatin and relatively abundant eosinophilic cytoplasm, consistent with a neuroendocrine adenoma (hematoxylin and eosin, original magnification x20).
Portions of liver were fixed in 10% neutral buffered formalin, embedded in paraffin, sectioned for light microscopy, and stained with hematoxylin and eosin, Ziehl-Neelsen acid fast, and the periodic acid-Schiff (PAS) stain.
Fixation with assayed fixative solutions is followed by Hemotoxylin & Eosin, Masson's trichrome staining and anti-Tubulin immuno-labeling.
Histopathological evaluation of the gastrointestinal tract revealed loss of parietal cells, mild glandular disarray, acute inflammation, and apoptotic activity in the stomach (Figure 3, hematoxylin and eosin, original magnification 200x) and patchy villous atrophy and absence of goblet cells and Paneth cells in the duodenum with crypt abscesses and apoptosis (Figure 3, hematoxylin and eosin, original magnification 200x); and in the terminal ileum, as in the duodenum, there was also an absence of goblet and Paneth cells, with crypt dropout (Figure 3, hematoxylin and eosin, original magnification 200x).
coli is a prerequisite which is often complicated in practice, due to the co-occurence of other interfering enteric bacteria such as Citrobacter, Klebsiella and Enterobacter, which also ferment lactose and exhibit similar colony morphology on Levine's Eosin Methylene Blue (EMB) agar selective for E.
In this perspective photocatalytic efficacy of organometallic ruthenium and eosin Y have been investigated in connection to their pursuit for the photocatalytic oxidative coupling of N-aryl tetrahydroisoquinoline with carbon and sulfur containing nucleophiles.
bancrofti along with inflammatory cells in fine needle aspirate of lymph node (Hematoxylin- Eosin, X40).