Breadcrumb Home > Thesaurus > H Cite Synonyms of hydrocyanic acid Find synonyms for: Noun1. hydrocyanic acid, prussic acid, acidusage: a solution of hydrogen cyanide in water; weak solutions are used in fumigating and in the synthesis of organic compoundsWordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: puerile Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language