[ prev-uh-luh ns ]
/ ˈprɛv ə ləns /


the condition of being prevalent, or widespread: the prevalence of AIDS in developing countries.

Nearby words

  1. prevail on,
  2. prevailing,
  3. prevailing westerlies,
  4. prevailing wind,
  5. prevailingly,
  6. prevalent,
  7. prevalently,
  8. prevaricate,
  9. prevarication,
  10. prevaricator

Sometimes prev·a·lent·ness.

Related formsnon·prev·a·lence, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for prevalence

Word Origin and History for prevalence



1590s, "fact of having mastery," from Middle French prévalence (15c.), from Late Latin praevalentia, from praevalens, present participle of praevalere (see prevalent). Meaning "condition of being widespread or general" is from 1713.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for prevalence


[ prĕvə-ləns ]


The total number of cases of a disease in a given population at a specific time.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.