- lubb-dupp
- lubb-dupp also lub-dup or lub-dub .ləb-'dəp, -'dəb n the characteristic sounds of a normal heartbeat as heard in auscultation
* * *
n.a representation of the normal heart sounds as heard through the stethoscope. Lubb (the first heart sound) coincides with closure of the mitral and tricuspid valves; dupp (the second heart sound) is due to closure of the aortic and pulmonary valves.* * *
(ləb-dupґ) syllables used to represent the combination of the first and second heart sounds. See lubb and dupp.
Medical dictionary. 2011.