[na.tron] n [F, fr. Sp natron, fr. Ar natrun, fr. Gk nitron] (1684): a hydrous native sodium carbonate used in ancient times in embalming, in ceramic pastes, and as a cleansing agent
NATRON
Meaning of NATRON in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012