As you may have noticed, above you will find words for "A white or yellowish-white crystalline substance made from phthalic acid and phenol. Its solution in alkalis is brilliant red, but is decolorized by acids, and as this reaction is exceedingly delicate it is used as an indicator.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.