polycystic ovary syndrome
noun [ U ] medical specialized uk/pɒl.iˌsɪs.tɪk ˈəʊ.vər.ɪ ˌsɪn.drəʊm/ us/ˌpɑːl.iˈsɪs.tɪk ˈoʊ.vər.i ˌsɪn.droʊm/ (abbreviation PCOS)
多囊性卵巢综合征
a condition in which there are a lot of cysts (= small growths filled with liquid) on the ovaries, associated with having high levels of male hormones