FLUORESCEIN

Pronunciation (US):

(GB):

 Dictionary entry overview: What does fluorescein mean? 

• FLUORESCEIN (noun)
  The noun FLUORESCEIN 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: FLUORESCEIN used as a noun is very rare.

 Dictionary entry details 

• FLUORESCEIN (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 ("fluorescein" 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 "fluorescein"):

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)

 Context examples 

Once bound to the cancer cell through the folate moiety of the conjugate, circulating anti-fluorescein antibodies may recognize and bind to the FITC moiety, resulting in antibody-dependent cellular cytotoxicity.

(Folate-FITC, NCI Thesaurus)

A conjugate consisting of keyhole-limpet hemocyanin (KLH) and fluorescein isothiocyanate (FITC) with potential immunostimulating activity.

(KLH-FITC, NCI Thesaurus)

An injectable form of the sodium salt of the fluorophore fluorescein.

(Fluorescein Sodium Injection, NCI Thesaurus)

Measurement of light given off by fluorescein in order to assess the integrity of various ocular barriers.

(Fluorophotometry, NCI Thesaurus)

Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light (From MSH 2001).

(Fluorescence microscopy, NCI Thesaurus)

A test for patency of the lacrimal system; fluorescein instilled in the conjunctival sac can be recovered from the inferior nasal meatus.

(Jones Test, NCI Thesaurus)

Vaccination with KLH-FITC may elicit an immune response against fluorescein and the production of anti-fluorescein IgG antibodies.

(KLH-FITC, NCI Thesaurus)

A conjugate consisting of fluorescein isothiocyanate (FITC) conjugated with folate with potential antineoplastic activity.

(Folate-FITC, NCI Thesaurus)

Fluorescein responds to electromagnetic radiation between the wavelengths of 465-490 nm and fluoresces, emitting light at wavelengths of 520-530 nm that can be detected visually.

(Fluorescein Sodium Injection, NCI Thesaurus)