layman - definition and synonyms

noun [countable] 

Your browser doesn’t support HTML5 audio

  1. 1
    someone who is not trained to a high or professional standard in a particular subject
    the layman (=all laymen as a group):

    a medical dictionary for the layman

    in layman’s terms (=in words that someone who is not an expert can understand):

    What does that mean in layman’s terms?