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pro·to·di·a·stol·ic -.dī-ə-'stäl-ik adj
1) of or relating to the early phase of diastole
2) of or relating to protodiastole
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pro·to·di·a·stol·ic (pro″to-di″ə-stolґik) pertaining to early diastole, i.e., immediately following the second heart sound.Medical dictionary. 2011.