excipient
/ɪkˈsɪpɪənt/noun
- an inactive substance that serves as the vehicle or medium for a drug or other active substance（用作药物载体的）赋形剂。
词源
early 18th cent. （as an adjective in the sense 'that takes exception'）： from Latin excipient- 'taking out', from the verb excipere.