Meanings
nounhydrogen cyanide (uncountable)
- uncountablechemistryA colourless, very poisonous, volatile liquid, HCN, used in the production of dyes, plastics and fumigants; it dissolves in water to form hydrocyanic acid and reacts with bases to form cyanides, and with some organic compounds to form nitriles.
Synonyms: chyazic acid, formonitrile, Nevada gas
Synonyms & antonyms
nounA colourless, very poisonous, volatile liquid, HCN, used in the production of dyes, plastics and fumigants; it dissolves in water to form hydrocyanic acid and reacts with bases to form cyanides, and with some organic compounds to form nitriles.
Translations
Chinese Cantonese 山埃
- 山埃 (saan¹ aai¹)the compound HCN
Chinese Mandarin 氰化氫 /氰化氢
- 氰化氫 /氰化氢 (qínghuàqīng, qīnghuàqīng)the compound HCN
Czech kyanovodík
- kyanovodíkthe compound HCN
Esperanto hidrogena cianido
- hidrogena cianidothe compound HCN
Finnish syaanivety, syaanivetyhappo
- syaanivetythe compound HCN
- syaanivetyhappothe compound HCN
- sinihappothe compound HCN
- formonitriilithe compound HCN
- vetysyanidithe compound HCN
French cyanure d'hydrogène
- cyanure d'hydrogènethe compound HCN
German Cyanwasserstoff
- Cyanwasserstoffthe compound HCN
Greek υδροκυάνιο
- υδροκυάνιο (ydrokyánio)the compound HCN
Hungarian hidrogén-cianid, ciánhidrogén
- hidrogén-cianidthe compound HCN
- ciánhidrogénthe compound HCN
Japanese 青酸, シアン化水素
- 青酸 (seisan)the compound HCN
- シアン化水素 (shianka suiso)the compound HCN
Korean 시안화수소, 청산
- 시안화수소 (sianhwasuso)the compound HCN
- 청산 (cheongsan)the compound HCN
- 청화수소 (cheonghwasuso)the compound HCN
Norwegian Bokmål hydrogencyanid
- hydrogencyanidthe compound HCN
Persian هیدروژن سیانید
- هیدروژن سیانید (hidrožen siyânid)the compound HCN
Polish cyjanowodór
- cyjanowodórthe compound HCN
Portuguese cianeto/cianureto de hidrogénio/hidrogênio
- cianeto/cianureto de hidrogénio/hidrogêniothe compound HCN
Swedish vätecyanid, blåsyra
- vätecyanidthe compound HCN
- blåsyrathe compound HCN
- cyanvätethe compound HCN
- cyanvätesyrathe compound HCN
Thai ไฮโดรเจนไซยาไนด์
- ไฮโดรเจนไซยาไนด์ (hai-droo-jeen-sai-yaa-nai)the compound HCN
Turkish hidrojen siyanür
- hidrojen siyanürthe compound HCN
Cite this entry
APA
hydrogen cyanide. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/hydrogen%20cyanide
MLA
“hydrogen cyanide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydrogen%20cyanide. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “hydrogen cyanide,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/hydrogen%20cyanide.
Source: hydrogen cyanide on Wiktionary, CC BY-SA 4.0.