diastole


di·as·to·le

noun \dī-ˈas-tə-(ˌ)lē\

Definition of DIASTOLE

:  a rhythmically recurrent expansion; especially :  the dilatation of the cavities of the heart during which they fill with blood
di·a·stol·ic \ˌdī-ə-ˈstä-lik\ adjective

Origin of DIASTOLE

Greek diastolē dilatation, from diastellein to expand, from dia- + stellein to prepare, send
First Known Use: circa 1578

di·as·to·le

noun \dī-ˈas-tə-(ˌ)lē\   (Medical Dictionary)

Medical Definition of DIASTOLE

1
: the passive rhythmical expansion or dilation of the cavities of the heart during which they fill with blood—compare systole
2
: the rhythmical expansion of a pulsating vacuole (as of an ameba)
di·a·stol·ic \ˌdī-ə-ˈstäl-ik\ adjective

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