pyrogallol, pyrogallic acid
(noun) a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
Source: WordNet® 3.1
pyrogallol (uncountable)
(organic compound) A poisonous trihydroxy phenol, 1,2,3-trihydroxybenzene, C6H3(OH)3, used is a photographic developer.
• pyrogallic acid
Source: Wiktionary
Pyr`o*gal"lol, n. Etym: [Pyrogallic + -ol.] (Chem.)
Definition: A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also pyrogallic acid. It is a strong reducer, and is used as a developer in photography and in the production of certain dyes.
Source: Webster’s Unabridged Dictionary 1913 Edition
9 January 2025
(noun) (obstetrics) position of the fetus in the uterus relative to the birth canal; “Cesarean sections are sometimes the result of abnormal presentations”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
