Systole

·noun The shortening of the long syllable.

II. Systole ·noun The contraction of the heart and arteries by which the blood is forced onward and the circulation kept up;

— correlative to diastole.

III. Systole ·add. ·noun The contraction of the heart and arteries by which the blood is forced onward and the circulation kept up; also, the contraction of a rhythmically pulsating contractile vacuole;

— correlative to diastole.