What does the word prevalence mean?

Usage examples for prevalence

  1. During the prevalence of the earthquakes, it was customary to suspend some object so as to act as a pendulum in all the rooms and by the degree of its motion to determine the probable amount of danger. – The History of Louisville, from the Earliest Settlement till the Year 1852 by Ben Casseday
  2. That is what we are working for, as well as to assure the prevalence of devotion in the army, giving the men to understand that we are waging here a holy war. – The Makers of Canada: Bishop Laval by A. Leblond de Brumath