A "layman" is a person who is a non-expert in a given field of knowledge
The idea is that a layman is one who is not an expert in a given area.
Painful swallowing.
The opposite of "laymen's terms" would probably be "technical terms."
punctuality in layman's terms means simply, being on time, being where you are supposed to be when you are told to be there.
How it works in layman's terms.
A layman's description is the expression of technical information in a form that the common person can understand. It means explaining something in nontechnical terms.
Integrity, in layman's terms, means the person is honest, responsible, and trustworthy. In other words, you could trust that person to do the right thing even when you are not watching them. That's integrity.
Einsatzgruppen were, in layman's terms, the death squads of the Waffen SS.
"Executive privilege" is a term used by the United States government. In layman's terms, it refers to the ability of the President to overrule interventions from the other two branches of government.
President Richard Nixon in 1971 using an act known as the Nixon Shock.
Nixon's decision to end the U.S. dollar's convertibility to gold