SALTPETER


Meaning of SALTPETER in English

noun Etymology: Middle English salt petre, alteration of salpetre, from Medieval Latin sal petrae, literally, salt of the rock Date: 14th century potassium nitrate , sodium nitrate

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.