diane / diaene / diene ['daɪin]
diane – n. – a drug, BADD D00644 with the formula, C44H53ClO6, used in combination with other drugs to treat hormonal disorders such as polycystic ovarian syndrome and as a hormonal contraceptive
diaene – n. – Chemistry – a triene hydrocarbon molecule with one ray reduced or absent
diene – n. – Chemistry, a hydrocarbon with two carbon=carbon double bonds