treatise
A formal, usually lengthy, systematic discourse on some subject.
Synonyms
- dissertation
Related words
- treatiselike
- treatiser
- learned treatise
Word history
From Old French "traitis" (treatise, account).
Where this comes from
This definition is adapted from “treatise” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.