a monoclinic mineral, grayish or yellowish hydrous sodium carbonate and bicarbonate, Na2CO3⋅NaHCO3⋅2H2, occurring in dried or partly evaporated lake basins.

Origin of trona

1790–1800; < Spanish < dialectal Arabic ṭrōn, aphetic variant of naṭrūn natron Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for trona

Historical Examples of trona

British Dictionary definitions for trona



a greyish mineral that consists of hydrated sodium carbonate and occurs in salt deposits. Formula: Na 2 CO 3 NaHCO 3 .2H 2 O

Word Origin for trona

C18: from Swedish, probably from Arabic natrūn natron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012