Answer:

systole

Answer	Crossword Clue
SYSTOLE	Heart contraction
SYSTOLE	Half a tick
SYSTOLE	Cardiac contraction

SYSTOLE	Contraction of the heart
SYSTOLE	Shortening of a syllable.
SYSTOLE	Part of the heart's work.
SYSTOLE	Contraction of the heart.
SYSTOLE	Natural contraction of the heart.
SYSTOLE	Heart contraction.
SYSTOLE	Cardiologist's concern
SYSTOLE	Shortening of a syllable

SYSTOLE	Heartbeat action
SYSTOLE	Opposite of ectasis
SYSTOLE	Phase of a heartbeat
SYSTOLE	Normal rhythmical contraction of the heart
SYSTOLE	Part of a heartbeat
SYSTOLE	Part of a blood pressure reading
SYSTOLE	Rhythmic heart contraction