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Medical Dictionary


noun pro·phy·lax·is \-ˈlak-səs\
plural pro·phy·lax·es \-ˈlak-ˌsēz\

Medical Definition of PROPHYLAXIS

:  measures designed to preserve health and prevent the spread of disease :  protective or preventive treatment <prophylaxis against viral diseases> <a paste containing fluorine for dental prophylaxis>


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