[hy.dro.cy.an.ic acid] n [ISV] (1819): 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 English vocab. Английский словарь Merriam Webster. 2012