Medical Definition of Second heart sound

1. The second sound heard on auscultation of the heart; signifies the beginning of diastole and is due to closure of the semilunar valves. Synonym: second sound. (05 Mar 2000)

Lexicographical Neighbors of Second Heart Sound

Second Epistle of Paul the Apostle to the Thessalo
Second Epistle of Paul the Apostle to Timothy
Second Epistle of Peter
Second Epistle to the Corinthians
Second Epistle to the Thessalonians
Second Epistle to Timothy
second estate
second fiddle
second finger
second gas effect
second gear
second growth
second growth
second half
second hand
second heart sound (current term)
second incisor
second joint
second law of motion
second law of thermodynamics
second law of thermodynamics
second lieutenant
second line chemotherapy
Second Marquis of Rockingham
second meiotic division
second messenger
second messenger systems
second molar
second moment
second mortgage

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