Medical Dictionary

thymolphthalein

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noun thy·mol·phtha·lein \-ˈthal-ˌēn, -ˈthā-ˌlēn, -ˈthal-ē-ən\

Medical Definition of thymolphthalein

  1. :  a crystalline compound C28H30O4 analogous to phenolphthalein and likewise used as an acid-base indicator


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