roman à thèse
/rə(ʊ)ˌmɒ̃ a ˈtɛz/ /rə(ʊ)ˌman a ˈtɛz/(also roman a thèse)
noun
A novel that seeks to further a viewpoint or expound a theory.
Origin
Early 20th century; earliest use found in Author. From French roman à thèse from roman + à with + thèse.