eosin
Americannoun
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Also called bromeosin, tetrabromofluorescein. a red, crystalline, water-insoluble solid, C 20 H 8 Br 4 O 5 , derived from fluorescein by bromination: used chiefly as an acid dye for dyeing silk a rose red color and as a histological stain.
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any of a variety of eosinlike dyes.
noun
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Also called: bromeosin. a red crystalline water-insoluble derivative of fluorescein. Its soluble salts are used as dyes. Formula: C 20 H 8 Br 4 O 5
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any of several similar dyes
Other Word Forms
Etymology
Origin of eosin
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Gruebler lists four varieties, of which two only are useful for bacteriological work: Eosin, aqueous yellowish.
From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)
Eosin may be said to be a modifier of vermilion or vermilion of eosin.
From A Critique of the Theory of Evolution by Morgan, Thomas Hunt
B. Weigh out: Eosin, extra B. A. 0.1 gramme Dissolve in Distilled water 100 c.c.
From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)
Weigh out Eosin, aqueous 1.0 gramme dissolve in Distilled water 100.0 c.c. and add Absolute alcohol 5.0 c.c.
From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)
Sexual Dimorphism 61-64 Eosin eye color of Drosophila 61-62 Color of the Clover Butterfly, Colias philodice 62-63 Color of Papilio turnus 63 Color pattern of Papilio polytes 63-64 b.
From A Critique of the Theory of Evolution by Morgan, Thomas Hunt
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
