mestranol
/ˈmɛstrənɒl/Pharmacology
noun
A synthetic oestrogen used chiefly in oral contraceptives, in combination with a progestational agent; the 3-methyl ether of ethynyloestradiol, C21H26O2.
Origin
1960s; earliest use found in Approved Names. Probably from me- + -stran- + -ol.