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prophylactic
prophylactic definition
pro·phy·lac·tic (prō′fə lak′tik)
adjective
preventive or protective; esp., preventing or guarding against disease
Etymology: Gr prophylaktikos < prophylassein, to be on guard < pro-, before (see pro-) + phylassein, to guard < phylax, guard
noun
- a prophylactic medicine, device, treatment, etc.
- ☆ a condom
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