pyrogallol
Americannoun
noun
Other Word Forms
Etymology
Origin of pyrogallol
First recorded in 1875–80; pyro- + gall(ic) 2 + -ol 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When ozone is bubbled through a dilute pyrogallol solution, the liquid glows brightly though no heat is evolved.
From Time Magazine Archive
In collodion it should at first not be used of greater strength than three to four per cent., as in this form pyrogallol sometimes acts with unexpected energy.
From Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine by Henry Weightman Stelwagon
The tannins are divided into two general classes, known respectively as the pyrogallol tannins and the catechol tannins.
From The Chemistry of Plant Life by Roscoe Wilfred Thatcher
If gallic acid be used instead of pyrogallol, the tone is black.
From Photographic Reproduction Processes by Peter C. Duchochois
The acid is a phenolic derivative of benzoic acid, viz. trihydroxybenzoic acid, and on heating it readily passes into trihydroxybenzene, which is the “pyrogallic acid” or pyrogallol familiar as a photographic developer.
From Coal and What We Get from It by Raphael Meldola
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
