presystole
Webster's Unabridged Dictionary:
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Pre·sys·tol·ic
a.
(Physiol.) Preceding the systole or contraction of the heart; as, the presystolic friction sound.
American Heritage Stedman's Medical Dictionary:
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pre·sys·to·le
(prē-sĭs'tə-lē)
n.
n.
The interval in the cardiac rhythm immediately preceding systole.
pre'sys·tol'ic (-sĭ-stŏl'ĭk) adj.Saunders Veterinary Dictionary:
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presystole
The interval in the cardiac cycle just before systole.
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American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
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