Advertisement

Advertisement

eosin

[ ee-uh-sin ]

noun

, Chemistry.
  1. 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.
  2. any of a variety of eosinlike dyes.


eosin

/ ˈiːəʊsɪn; ˈiːəʊsɪn; -ˌsiːn /

noun

  1. Also calledbromeosin a red crystalline water-insoluble derivative of fluorescein. Its soluble salts are used as dyes. Formula: C 20 H 8 Br 4 O 5
  2. any of several similar dyes
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


Discover More

Derived Forms

  • ˈeosin-ˌlike, adjective
  • ˌeoˈsinic, adjective
Discover More

Other Words From

  • eo·sinic adjective
  • eo·sin·like adjective
Discover More

Word History and Origins

Origin of eosin1

1865–70; < Greek ēṓs dawn ( eo- ) + -in 2
Discover More

Word History and Origins

Origin of eosin1

C19: from Greek ēōs dawn + -in ; referring to the colour it gives to silk
Discover More

Example Sentences

Inside the ABS carrying case, you’ll also find a pair of tweezers, collecting vials, a Petri dish, prepared slides, Eosin dye, and more.

Other counterstains may be used such as dilute eosin, dilute fuchsin, or vesuvin.

Wassermann made several eosin preparations, by coupling the sodium derivative with potassium selenocyanide.

The eosin and the selenium were then combined by a method and in a form the details of which have never been published.

In this respect, therefore, they were entirely comparable with the eosin-selenium compound.

Wassermanns results with eosin-selenium were soon critically examined by other observers.

Advertisement

Advertisement

Advertisement

Advertisement


Eoseosinophil