The story
From [Term?] + -mestane (“aromatase inhibitor”).
Etymology from Wiktionary, CC BY-SA 4.0.
exemestane
Today it means: An antineoplastic drug C₂₀H₂₄O₂ (trademark Aromasin) that is taken orally in the treatment of advanced breast cancer in postmenopausal women. It is a steroidal aromatase inhibitor that suppresses the synthesis of estrogen, a hormone that acts as a growth factor for breast cancer cells. Full definition →