Definition of saleratus in English:

saleratus

noun

mass nounUS
dated
  • Sodium bicarbonate (or sometimes potassium bicarbonate) as the main ingredient of baking powder.

    • ‘Industrially saleratus was made by combining pearlash with carbonic acid. However pioneers heading west did manage to stumble across naturally-occurring deposits of it from time to time (Saleratus Lake, Wyoming was one such place).’
    • ‘Saleratus was adopted by the medical community as a safe and effective treatment for acid stomach.’

Origin

Mid 19th century: from modern Latin sal aeratus ‘aerated salt’.

Pronunciation

saleratus

/ˌsaləˈreɪtəs/