prophylactic

Adjective

• preventing or contributing to the prevention of disease
  • preventive medicine
    
  • vaccines are prophylactic
    
  • a prophylactic drug
    

• warding off
  • the swastika...a very ancient prophylactic symbol occurring among all peoples- Victor Schultze
    

• capable of preventing conception or impregnation
  • contraceptive devices and medications
    

Noun

• contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse

• remedy that prevents or slows the course of an illness or disease
  • the doctor recommended several preventatives
    

Related words

• Synonyms: 
  preventive , preventative , cautionary , contraceptive , antifertility , condom , rubber , safety , safe