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Dictionary

tro•na

Pronunciation: (trō'nu), [key]
—n.
a monoclinic mineral, grayish or yellowish hydrous sodium carbonate and bicarbonate, Na₂CO₃·NaHCO₃·2H₂, occurring in dried or partly evaporated lake basins.

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

-tron

Trondheim

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