As you may have noticed, above you will find words for "A synthetic progestogen C₂₁H₂₈O₂ having two optically active forms of which the biologically active levorotatory form is used in birth control pills.". Hover the mouse over the word you'd like to know more about to view its definition. Click to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.