CYAN- Meaning of CYAN- in English cyan- 1 var. of cyano- 1 , usually before a vowel or h: cyanamide. cyan- 2 var. of cyano- 2 , before a vowel.cyan- 3 var. of cyano- 3 , before a vowel. Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012