Meaning of “prevalent” - Learner’s Dictionary

prevalent

adjective us uk /ˈprevələnt/

existing a lot in a particular group, area, or at a particular time:

These diseases are more prevalent among young children.
prevalence noun [ U ] us uk /ˈprevələns/

the large amount of something in a particular group, area, or at a particular time:

the prevalence of smoking among teenagers

(Definition of “prevalent” from the Cambridge Learner’s Dictionary © Cambridge University Press)