# cyanogen

> English word · Noun · IPA /saɪˈæn.ə.d͡ʒɪn/ · frequency rank #77,576

## Definitions
1. The pseudohalogen (CN)₂; a colorless, poisonous gas used as a rocket propellant, an insecticide and in chemical warfare.
2. The radical -CN.

## Etymology
From cyano- + -gen; compare French cyanogène. So called because it produced blue dyes.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/cyanogen