From Longman Dictionary of Contemporary EnglishRelated topics: Collegedissertationdis‧ser‧ta‧tion /ˌdɪsəˈteɪʃən $ ˌdɪsər-/ ●○○ noun [countable]SECTCa long piece of writing on a particular subject, especially one written for a universitydegree → thesisExamples from the Corpusdissertation• This gives the user the opportunity to produce an index to a long document such as a report or a dissertation.• In effect, such an order intends that all dissertations and papers will be submitted for vetting.• His dissertation on felineneuraldisorders would waIt.• Limitations of spacepreclude a lengthydissertation on what is a vast subject.• Not demands, orders, or dissertations, just requests.• The only exception to this happy situation is the case study or historicalthesis or dissertation.• This covers matriculation, tuition and one diet of examinations including examination of a postgraduate thesis or dissertation.• As is often the case with dissertations, mine dealt with dramaticevents but was abstract, academic, and lifeless.Origindissertation(1600-1700)Latindissertatio, from dissertare“to discuss”