- A long essay on a particular subject, especially one written as a requirement for the Doctor of Philosophy degree: Joe wrote his doctoral dissertation on Thucydides • figurative she went on then into a dissertation on her family’s love of IrelandMore example sentences
- He makes his living writing term papers and dissertations before he gets recruited by a spy agency and sent all over the world by them.
- She is prolific, with dozens of titles to her credit and several doctoral dissertations and academic titles written on her work.
- At the end there are 11 items for discussion, much as one finds in university dissertations.
early 17th century (in the sense 'discussion, debate'): from Latin dissertatio(n-), from dissertare 'continue to discuss', from disserere 'examine, discuss'.