pitchstone
Americannoun
noun
Etymology
Origin of pitchstone
1775–85; translation of German Pechstein. See pitch 2, stone
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.
Using four 20-in. mirrors, he focuses sunlight on powdered pitchstone in a glass laboratory tube until its water of crystallization steams off.
From Time Magazine Archive
There are numerous varieties of lava, such as basalt, obsidian, pitchstone, pearlstone, trachyte, &c.; some are heavy compact rocks, others are light and porous.
From Geology by James Geikie
The lavas are curious from abounding in, or rather being in parts composed of pitchstone.
From More Letters of Charles Darwin — Volume 1 by Sir Francis Darwin
The whole northern and lower portion of the island had vanished, except an isolated pitchstone rock, ten yards square, and projecting out of the ocean with deep water all around it.
From Complete Story of the San Francisco Horror by Richard Linthicum
The characteristic rock is a black vitreous trachyte resembling pitchstone, but anhydrous.
From The Andes and the Amazon Across the Continent of South America by James Orton
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.
