Definition of Pitchstone in English :
Define Pitchstone in English
Pitchstone meaning in English
Meaning of Pitchstone in English
Pronunciation of Pitchstone in English
Pitchstone pronunciation in English
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Pitchstone
see synonyms of pitchstoneNoun
1. pitchstone
dark acid granitic glass
WordNet Lexical Database for English. Princeton University. 2010.
Pitchstone
see synonyms of pitchstonenoun
a dark glassy acid volcanic rock similar in composition to granite, usually intruded as dykes, sills, etc
Collins English Dictionary. Copyright © HarperCollins Publishers
Pitchstone
see synonyms of pitchstone noun
a volcanic glass that somewhat resembles pitch and has a higher percentage of water than obsidian or other glassy rocks
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Pitchstone
see synonyms of pitchstonen.
Any of various volcanic glasses distinguished by their dull pitchlike luster.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.