definition of the word acardiac

From Greek ἀκάρδιος (akardios) + -ac after cardiac.

acardiac

1. (medicine) Lacking a heart.
   • 1831: Marshall Hall, A Critical and Experimental Essay on the Circulation of the Blood, p. 76

     The fact of a perfect circulation in acardiac fœtuses and acardiac animals, seems strongly to indicate an important influence in the arteries.

• acardiac twin
• acardiac twinning

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