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third heart sound

third heart sound in Medicine

third heart sound n.
The heart sound that occurs in early diastole and corresponds with the first phase of rapid ventricular filling.

The American HeritageĀ® Stedman's Medical Dictionary
Copyright Ā© 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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