vitelline
/vɪˈtelɪn/adjective
- Zoology & Embryology of or relating to the yolk (or yolk sac) of an egg or embryo, or to yolk-producing organs【动, 胚】卵黄的。
词源
late Middle English （in the sense 'coloured like egg yolk'）： from medieval Latin vitellinus, from vitellus （see VITELLUS）.