diastole Meaning, Definition & Usage

  1. noun the widening of the chambers of the heart between two contractions when the chambers fill with blood

WordNet

Di*as"to*le noun
Etymology
L., fr. Gr. , fr. to put asunder, to separate; through + to set, to place.
Definitions
  1. (Physiol.) The rhythmical expansion or dilatation of the heart and arteries; -- correlative to systole, or contraction.
  2. (Gram.) A figure by which a syllable naturally short is made long.

Webster 1913