There are multiple definitions:

1. abnormal cardiac activity detector(English)

   • Cardiology, Electrophysiology

2. acyl-CoA dehydrogenase(English)

   • a family of enzymes that catalyzes the α,β-dehydrogenation of acyl-CoA esters, transferring electrons to electron transferring flavoprotein
   • SCAD, ETF
   • Enzymes
   • https://doi.org…gme.2008.09.007

3. atherosclerotic coronary artery disease(English)

   • CVD, NACAD
   • Coronary circulation, Atherosclerosis /atherogenic
   • https://doi.org…sis.2015.01.017