RESORCINOLPHTHALEIN

Pronunciation (US):

(GB):

 Dictionary entry overview: What does resorcinolphthalein mean? 

• RESORCINOLPHTHALEIN (noun)
  The noun RESORCINOLPHTHALEIN has 1 sense:

1. 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)

  Familiarity information: RESORCINOLPHTHALEIN used as a noun is very rare.

 Dictionary entry details 

• RESORCINOLPHTHALEIN (noun)

Sense 1

Meaning:

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)

Classified under:

Nouns denoting substances

Synonyms:

fluorescein; fluoresceine; fluorescent dye; resorcinolphthalein

Hypernyms ("resorcinolphthalein" is a kind of...):

absorption indicator (an indicator used in reactions that involve precipitation)

dye; dyestuff (a usually soluble substance for staining or coloring e.g. fabrics or hair)

Domain category:

solution (a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution)

Hyponyms (each of the following is a kind of "resorcinolphthalein"):

bromeosin; 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)