It is a term of art used in philosophy, law, and science.
A. It is not a term of art in the political business.
Does he also use "billion" as a term of art?
So "missionary position" is probably not the term of art for what's going on.
It is a legal term of art, having specialized meaning in the law.
Suddenly "exposure" seems like something you could really die from, and not just a term of art.
His father is a builder, so maybe that's a term of art.
In the garment industry, there is a term of art for this.
These terms of art include ordinary words used with special meanings.
That is standard practice, and there are even terms of art for it.