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Dictionary


tra•chyte



Pronunciation: (trā'kīt, trak'īt), [key]
n.
a fine-grained volcanic rock consisting essentially of alkali feldspar and one or more subordinate minerals, as hornblende or mica: the extrusive equivalent of syenite.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

trachyspermoustracing

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