noun Etymology: International Scientific Vocabulary Date: 1816 an aqueous solution of hydrogen cyanide HCN that is a poisonous weak acid and is used chiefly in fumigating and in organic synthesis
HYDROCYANIC ACID
Meaning of HYDROCYANIC ACID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012