diastole: Meaning and Definition of

di•as•to•le

Pronunciation: (dī-as'tl-ē", -tl-ē), [key]
— n.
  1. the normal rhythmical dilatation of the heart during which the chambers are filling with blood. Cf. systole (def. 1).
  2. the lengthening of a syllable regularly short, esp. before a pause or at the ictus.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
diastereomer diastolic
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