prophylactic device英 [ˌprɒfəˈlæktɪk dɪˈvaɪs]美 [ˌproʊfəˈlæktɪk dɪˈvaɪs]网络 预防性装置网络英英释义nounan agent or device intended to prevent conceptionSynonym:contraceptivepreventivepreventativecontraceptive devicebirth control device