Definitions

1. adjective

Acardiac refers to an abnormal development in a twin pregnancy where one twin lacks a functioning heart, often leading to death in utero or shortly after birth.

“The doctors were concerned about the acardiac twin in the ultrasound image.”

2. noun

An acardiac twin, a rare and usually non-viable fetus in a twin pregnancy where one twin has a poorly developed or absent heart.

“The acardiac twin did not survive due to the severe heart condition.”