English Dictionary

PHENOLPHTHALEIN

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IPA (US): 

 Dictionary entry overview: What does phenolphthalein mean? 

PHENOLPHTHALEIN (noun)
  The noun PHENOLPHTHALEIN has 1 sense:

1. a laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8play

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


 Dictionary entry details 


PHENOLPHTHALEIN (noun)


Sense 1

Meaning:

A laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8

Classified under:

Nouns denoting man-made objects

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

laxative (a mild cathartic)

acid-base indicator (an indicator that changes color on going from acidic to basic solutions)


 Context examples 


However, phenolphthalein is no longer used as a laxative due to the suspected carcinogenicity of this compound.

(Phenolphthalein, NCI Thesaurus)

Phenolphthalein exerts laxative effects by stimulating the intestinal mucosa and constricting smooth muscles.

(Phenolphthalein, NCI Thesaurus)



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