Norplant
/ˈnɔːplænt/noun
mass noun
- trademark a contraceptive for women consisting of small rods implanted under the skin which gradually release the hormone levonorgestrel over a number of years〈商标〉诺普兰避孕栓（一种女用避孕栓剂, 由数根小棒组成, 植于皮下, 可在数年内逐渐释放孕激素左旋甲基炔诺酮）。
词源
1980s: from （levo）nor（gestrel） （im）plant.