volcanic-glass
volcanic glass
noun
a natural glass produced when molten lava cools very rapidly; obsidian.
Origin:
1830–40
1830–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To volcanic-glass
Collins
World English Dictionary
| volcanic glass | |
| —n | |
| any of several glassy volcanic igneous rocks, such as obsidian and pitchstone | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
00:10
Volcanic-glass
is always a great word to know.
So is doohickey. Does it mean:
| a gadget; dingus; thingumbob. |
| a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question. |
American Heritage
Science Dictionary
| volcanic glass
Natural glass produced by the cooling of molten lava too quickly to permit crystallization. Obsidian is a type of volcanic glass. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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