phthaleins
plural of phthalein
Source: Wiktionary
Phthal"e*in, n. Etym: [See Phthalic.] (Chem.)
Definition: One of a series of artificial organic dyes made as condensation products of the phenols with phthalic acid, and well represented by phenol phthaleïn. Their alkaline solutions are fluorescent. Phenol phthalein, a white or yellowish white crystalline substance made from phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids, and as this reaction is exceedingly delicate it is used as an indicator.
Source: Webster’s Unabridged Dictionary 1913 Edition
10 May 2025
(verb) declare (a dead person) to be blessed; the first step of achieving sainthood; “On Sunday, the martyr will be beatified by the Vatican”
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
