Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

prophylaxis

play
noun pro·phy·lax·is \-ˈlak-səs\

Definition of prophylaxis

plural

prophylaxes

play \-ˈlak-ˌsēz\
  1. :  measures designed to preserve health (as of an individual or of society) and prevent the spread of disease



Origin and Etymology of prophylaxis

New Latin, from Greek prophylaktikos


First Known Use: circa 1842

Rhymes with prophylaxis


Medical Dictionary

prophylaxis

play
noun pro·phy·lax·is \-ˈlak-səs\

Medical Definition of prophylaxis

plural

prophylaxes

\-ˈlak-ˌsēz\play
  1. :  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>




Learn More about prophylaxis


Seen and Heard

What made you want to look up prophylaxis? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a talk on a religious or moral theme

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

lavender-fields-in-france

Which of these is a synonym of caesura?

rebellion interruption torrent megillah
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ