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Tachylite - 3 dictionary results

tach⋅y⋅lyte

   [tak-uh-lahyt]
–noun Petrography.
a black, glassy form of basalt, readily fusible and of a high luster.
Also, tach⋅y⋅lite.

Origin:
1865–70; tachy- + -lyte 2
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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tach·y·lyte also tach·y·lite     (tāk'ə-līt')  Pronunciation Key 
n.   A black, glassy basalt of volcanic origin.

[German Tachylyt : Greek takhu-, tachy- + Greek lutos, soluble (from lūein, to loosen; see leu- in Indo-European roots).]
tach'y·lyt'ic (-lĭt'ĭk) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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tachylite

noun
a basic or basalt glass 

WordNet® 3.0, © 2006 by Princeton University.
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