Associations to the word «Phthalein»
Wiktionary
PHTHALEIN, noun. (organic chemistry) any of a range of lactones formed by the reaction of phenols with phthalic anhydride
Wise words
Don't use words too big for the subject. Don't say
"infinitely" when you mean "very"; otherwise you'll have no
word left when you want to talk about something really
infinite.