URANYL Meaning of URANYL in English — uranylic , adj./yoor"euh nil/ , n. Chem.the bivalent ion UO 2 +2 , or the group UO 2 , which forms salts with acids. [ 1840-50; URAN(IUM) + -YL ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012