Below the supraventricular crest; usually used in reference to ventricular septal defect. ... Origin: infra-+ L. Crista, crest ... (05 Mar 2000) ... 
Type: Term Pronunciation: in′fră-kris′tăl Definitions: 1. Below the supraventricular crest of the right ventricle; usually used in reference to ventricular septal defect.
infracristal Below the supraventricular crest; usually used in reference to a ventricular septal defect.