dissertation
n. countablen. a long piece of writing on a specific subject that you complete to earn a university degree. It usually involves your own research and takes months to finish.
n. a substantial piece of academic writing based on original research, submitted as a requirement for an undergraduate or postgraduate degree. Often used interchangeably with 'thesis' in certain academic cultures, though typically referring to the final project of a Master's or Bachelor's degree.
She is currently writing her dissertation on climate change.
After months of gathering data in the field, he spent the entire summer in the library finishing his dissertation.
The candidate's dissertation offers a compelling re-evaluation of post-war economic policy, synthesising previously unexamined archival materials with modern statistical models to challenge the prevailing historical narrative.
From Latin dissertātiō, from dissertō.
Commonly takes the preposition 'on' to indicate the subject matter.