| 释义 |
acardius acardius [a-kahr´de-us] a parasitic twin fetus that lacks a heart and uses the circulation of its twin. See also hemiacardius and holoacardius.a·car·di·us (ā-kar'dē-ŭs), A twin without a heart that remains viable by using the placental circulation of its mate; usually other body parts are also absent. |