/prəˈdʒestərəʊn ||; proˈdʒɛstɚˌon/noun [U] a substance(hormone)produced in the bodies of women and female animals which prepares the body to become pregnant 孕酮，黄体酮（一种性激素，产生于妇女及雌性动物体内，使身体为怀孕作好准备） ☞Look at oestrogen and testosterone. 参看oestrogen及testosterone。