Meaning of trona

tro•na

Pronunciation: (trō'nu), [key]
— n.
  1. a monoclinic mineral, grayish or yellowish hydrous sodium carbonate and bicarbonate, NaCO&multiplydot;NaHCO&multiplydot;2H, occurring in dried or partly evaporated lake basins.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.