1) A colorless, very poisonous, flammable gas with a smell of bitter almonds.
Chemical formula: C2N2. It was discovered by
Louis Joseph Gay-Lussac (1778-1850) in 1848.
bând-e siyânožen (#)
Fr.: bande de cyanogène
An → absorption band of molecular origin characterizing the spectra of → late-type stars (G0 and later, e.g. → S star). → Cyanogen absorption is an important → luminosity criterion for → low-mass stars, and is more pronounced in → giant stars than in → dwarf stars of the same → spectral type.