10 letters · 17 points in Scrabble
noun the quality of prevailing generally; being widespread
noun (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population
noun a superiority in numbers or amount
originEtymology tree Middle French prévalencebor. English prevalence Borrowed from Middle French prévalence.
Etymology from Wiktionary, CC BY-SA 3.0