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Related to eosine: methylene blue, Betadine


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 ?
After imbedding, 4 micrometer section was cut from each block by microtome, mounted on slide and stained by hematoxylin and eosine (HE) as describe by Sakamoto et al.
Further the broth culture was inoculated on different selective and differential media like Nutrient agar, Brain heart infusion agar, Mannitol salt agar, Mac Conkey Lactose agar and Eosine methylene blue agar and then incubated at 37 (o) C for 24 hours.
soft all beer hone, hoes, eosine, SHOESHINE root cordial, Lemonade, O.
PALCAM (n) 10 (B) Bacillus cereus MYP (o) 10 (B) Mycobacteriaceae Middlebrook 7H11 25 (B) Clostridium SPS (p) agar 10 (B) perfringens TSN (q) agar 20 (B) SFP (r) agar 3.57 (B) Targeted bacteria Antibiotics ([micro]g/mL) targeting Gram-negative Gram-positive Yeast strains strains Others Colistin-resistant Vancomycin 50 Gram-negative strains VancoR Gram-positive strains Gram-negative strains Colistin-resistant Daptomycin 10 5 (AB) BM 65 Eosine 400 Neisseria sp.
(a) Hematoxylin and Eosine (H&E) staining of bone marrow from control mice (treated with vehicle) and from mice exposed to forced swimming stress with vehicle (FSS) or with Apocynin (FSS + Apocynin).
Formalin-fixed liver sections (4 pm) were stained with hematoxylin and eosine. All sections were photographed with Olympus C-5050 digital camera mounted on Olympus BX51 microscope.
Wang et al., "Spectroscopic investigation on the sonodynamic damage to protein in the presence of eosine B," Ultrasonics Sonochemistry, vol.
Sectioning was done with microtome followed by staining with hematoxyline and eosine.
A loopful from each positive EC broth tubes (showing gas production) was streaked onto eosine methylene blue agar.
Appropriate dilutions were chosen and 0.1ml of the samples was spread plated on MacConkey agar (Hi media, India) and Eosine Methylene Blue (EMB) agar (Himedia, India).