Translation of "layman" - English-Russian dictionary

layman

noun [ C ] uk us /ˈleɪmən/ (plural laymen) ( also layperson)

someone who does not have special knowledge of a subject

непрофессионал
Could you please explain that in layman's terms (= in a simple way) ?

(Translation of “layman” from the Cambridge English–Russian Dictionary © Cambridge University Press)