portocavalWiktionary 原文英美构词拆解portoporto-前缀cavalcaval词干porto-(anatomy) portal vein · Alternative form of porta- (“portable”).词源说明From porto- + caval.释义形容词adjective1(anatomy) Relating to the portal vein and the vena cava.同族词相关词 2portosystemic·portasystemic