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syphilis
A sexually transmitted infection caused by bacteria.
syriac
An ancient Semitic language of the Middle East.
syrians
People from Syria, a country in the Middle East.
syringe
A tool for injecting liquids.
syrup
Thick liquid, often sweet.
system
An organized method for doing something.
systematic
Done according to a plan or method.
systematically
Done according to a fixed plan or system.
systematics
The study of organisms' classification.
systemic
Relating to an entire structure or body.
systolic
Related to heart contraction phase.
sz
a short way to write the word size