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syrtaki
Syrtis Major
syrup
syrupy
SYS
sysop
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systole
sys·to·le [ sístəlee ] (plural sys·to·les)


noun 
Definition:
 
heart contraction: the contraction of the heart, during which blood is pumped into the arteries
[Mid-16th century. Via late Latin< Greek sustolē< sustellein "contract" < stellein "put"]

sys·tol·ic [ si stóllik ] adjective
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