宮內避孕器 [宫内－－－]

Jyutping gung1 noi6 bei6 jan6 hei3
Pinyin gōng nèi bì yùn qì

Definitions (Wiktionary)
  1. noun
    intrauterine device (IUD); coil
    (syn.) 子宫环, 子宮環