• (n.) A lateral half of the heart, either the right or left.
(hem″e-kahr´de-ә) the presence of only one side of a four-chambered heart.
Hem`i·car'di·a noun [ New Latin See Hemi- , and Cardia .] (Anat.) A lateral half of the heart, either the right or left. B. G. Wilder. 
Type: Term Pronunciation: hem′ē-kar′dē-ă Definitions: 1. Either lateral half, including atrium and ventricle, of the heart. 2. A congenital malformation of the heart in which only two of the usual four chambers are formed.