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Dictionary

di•as•to•le

Pronunciation: (dī-as'tl-ē", -tl-ē), [key]
—n.
1. Physiol.the normal rhythmical dilatation of the heart during which the chambers are filling with blood. Cf. systole (def. 1).
2. Pros.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.

diastereomer

diastolic

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