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prophylaxis Line breaks: prophy|laxis
Pronunciation: /ˌprɒfɪˈlaksɪs/

Definition of prophylaxis in English:


[mass noun]
Treatment given or action taken to prevent disease: [with modifier]: all patients received preoperative antibiotic prophylaxis stroke prophylaxis
More example sentences
  • In those who are severely immunosuppressed the treatment and prophylaxis of opportunistic infections remains important.
  • Containment may not be possible without vaccination, prophylaxis or effective treatment.
  • Most urologic procedures do not require preoperative antibiotic prophylaxis.
preventive treatment, prevention, protection


Mid 19th century: modern Latin, from pro-2 'before' + Greek phulaxis 'act of guarding'.

Definition of prophylaxis in:
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