Definition of mestranol in US English:

mestranol

noun

Pharmacology
  • 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.

Pronunciation

mestranol

/ˈmɛstrənɒl/