# trona

> English word · Noun

## Definitions
1. An evaporite, consisting of mixture of sodium carbonate and sodium bicarbonate, Na₃HCO₃CO₃·2H₂O.

## Etymology
From Swedish trona or from Spanish trona, both derived from Arabic أَطْرُون (ʔaṭrūn), from نَطْرُون (naṭrūn), from Ancient Greek νίτρον (nítron), ultimately from Egyptian nṯrj: R9. Doublet of natron and niter.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/trona