eosin

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eosin

 [e´o-sin]
any of a class of rose-colored stains or dyes, all being bromine derivatives of fluorescein; eosin Y, the sodium salt of tetrabromofluorescein, is much used in histologic and laboratory procedures.

e·o·sin

(ē'ō-sin),
A derivative of fluorescein used as a fluorescent acid dye for cytoplasmic stains and counterstains in histology and in Romanowsky-type blood stains.
[G. ēōs, dawn]

eosin

/eo·sin/ (e´o-sin) any of a class of rose-colored stains or dyes, all being bromine derivatives of fluorescein; eosin Y, the sodium salt of tetrabromofluorescein, is much used in histologic and laboratory procedures.

eosin

(ē′ə-sən)
n.
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.

eosin

[ē′əsin]
a group of red acidic xanthine dyes often used in combination with a blue-purple basic dye such as hematoxylin to stain tissue slides in the laboratory.

e·o·sin

(ē'ō-sin)
A fluorescent acid dye used for cytoplasmic stains and counterstains in histology and in Romanowsky-type blood stains.
[G. ēōs, dawn]

eosin

A red dye commonly used to stain bacteria or tissue slices, for microscopic examination.

eosin

a rose-pink fluorescent dye, the soluble potassium salt being used in microscopic staining.

eosin

acid dyes used in histological preparations

e·o·sin

(ē'ō-sin)
Fluorescent acid dye used for cytoplasmic stains and counterstains in histology.
[G. ēōs, dawn]

eosin (e´osin),

n one of a pair of dyes used to color tissue samples to augment visibility under a microscope. The dyes are rose-colored, causing the cytoplasm to appear pink.

eosin

any of a class of rose-colored stains or dyes, all being bromine derivatives of fluorescein; eosin Y, the sodium salt of tetrabromofluorescein, is much used in histological and laboratory procedures. See also hematoxylin and eosin stain.